Someone keeps dropping off and coming back on but no one knows who.
有人半途掉线，又半途进来，但是谁也不知道是谁。
I was just dropping off some books. Have fun tonight. - Uh, you're not coming?
我来还几本书今晚玩得开心点-呃你不来了吗？
Water prevents the needles from drying and dropping off and maintains the fragrance.
水能使松针保持色泽和柔韧，阻止松针大量脱落。
The lobby was full, mostly with people dropping off various animals that they no longer wanted.
大厅里挤满了人，大部分人来丢弃他们不要的宠物。
A GWEN station transmits circularly up to 300 miles, the signal dropping off sharply with distance.
一个GWEN基站螺旋式传输多达300英里，信号强度随着距离的增加而急剧下降。
After dropping off Cammie and Mack with a neighbor, Mike raced his car along 1604 toward the hospital.
在把开米和麦克安顿给邻居炤看后，迈克开著车沿著1604号公路开往医院。
Forget counting sheep, next time you are having trouble dropping off to sleep try putting on a jazz CD.
把数羊入睡的办法忘了吧，下次如果你再睡不着的话，试着放一张爵士乐的CD听听。
Tapping on the brakes at the right time can mean surviving a hairpin turn without dropping off the cliff.
在合适的时候点刹车意味着成功通过夹弯而非冲下悬崖。
Dropping off infantry has a more tactical role since it is more about unit insertion than transporting Armor.
空投步兵更多的是起到战术作用，因为比起运送装甲来，他更多的是单位的穿插。
He made good time, and after dropping off his daughter, Shamrim, Abraham and his son, Walentin, had a moment to spare.
由于车开得快，在把女儿莎姆丽姆送到学校后，亚伯拉罕和儿子威伦廷还有点儿空闲时间在一起。
They are looking for anybody who saw something in this area that would directly relate to the dropping off of a package.
他们正在寻找看到这个区域一些东西的人，嫌疑人将直接关联到放下一个包裹。
However, lost robots leave a robot "scent" that prohibits future robots from dropping off the world at the same grid point.
然而，损失的机器人会留下一些“信息素”，以免后来的机器人再从同一格坠落。
Dropping off the dog will take us several hours off the planned route, so we review our day's schedule with this adjustment in mind.
送走小狗会花去我们若干小时，这使我们偏离所计划的路线，因此我们在心中审视我们一日的安排，并进行相应的调整。
As I was just dropping off, I heard a loud banging noise.I told myself it was just the neighbors and to stop making myself paranoid.
我刚要睡著，突然听到砰砰的巨响，我心想可能是邻居，告诉自己不要乱想。
On the one hand, Google has become a privacy bogeyman, dropping off the list of the top 20 companies trusted with customer privacy.
一方面，谷歌变成了侵犯隐私的魔鬼，它留下被委托管理顾客隐私的的排前20名的公司名单。
STOP! If you are dropping off your son's forgotten lunch, books, homework, equipment, etc., please TURN AROUND and exit the building.
如果您是要进来给孩子送他忘了带的午餐、课本、功课、物品等等，请您转身并离开这栋大楼！
As I was just dropping off, I heard a loud banging noise. I told myself it was just the neighbors and to stop making myself paranoid.
我刚要睡着，突然听到砰砰的巨响，我心想可能是邻居，告诉自己不要乱想。
He and his wife were busy Saturday, dropping off their only child, Allie, at Earlham College in Richmond, Ind., to begin her freshman year.
因为他和妻子在周六忙着送他们的独生女allie去里奇蒙的厄勒姆学院，开始她的大一新学年。
Most of the other mothers had already come and gone, dropping off their offerings of 3 punch and 4 crackers, chips, cupcakes and brownies.
其他同学的母亲大都已来过了，带来了她们做的饮料、饼干、薯条、蛋糕还有核仁巧克力饼。
A woman who was dropping off her daughter at a day care center had parked for 10 minutes and returned to find her window smashed and her purse gone.
一个女人把女儿送到日托所，就停了10分钟，回来就发现车窗被砸，包包不见了。
This sign reserves curb area for vehicles displaying a valid Accessible Person Parking Permit picking up and dropping off passengers with disabilities.
此标志显示路边区域是有特殊驻车选可证的车辆接送残疾人士的专用驻车区。
In fact, it's generally known that when people engage in any activity requiring concentrated effort, performance starts dropping off after 60-90 minutes.
实际上，根据我们的常识，当人们从事注意力高度集中的活动时，性能状态在60- 90分钟之后就会降低了。
Most of the other mothers had already come and gone, dropping off their offerings of punch, crackers, cupcakes and brownies. My mother was missing in action.
可是两点都过了，她还没有出现。其他同学的母亲大都已来过了，带来了她们做的饮料、饼干、薯条、蛋糕还有核仁巧克力饼。我的母亲却还不见踪影。
For it turns out the most effective shopping sprees are the snappiest ones – with our ability to spot a bargain dropping off significantly after less than half an hour.
研究证明，在购物狂潮中动作最快的人才是最会买东西的人。——我们讨价还价的能力在不到半小时的时间内就会明显降低。
Among them is 37-year-old Internet entrepreneur William Ding Lei, once China's richest man, who was among 10 billionaires who returned to the list after dropping off in past years.
在他们中37岁的互联网企业家威廉。丁磊，曾经是中国最富有的人，在掉出亿万富翁名单数年之后又回到了排行榜上。
The Boston Police division that regulates taxis says Cohen faces suspension for violating rules requiring drivers to inspect their cabs for forgotten items after dropping off a fare.
管理计程车的波士顿警察分局说，柯恩因为违反规定而面临停业；依规定，计程车司机要在送乘客下车后，检查车内是否有遗忘的物品。
Because they were so sensitive to deadly gases such as methane and carbon monoxide, a canary dropping off its perch was a highly visible signal to the miners that it was time to leave.
因为它们对于甲烷和一氧化碳等致命毒气非常敏感，从栖木上掉下来的金丝雀是一个明显的信号，告诉矿工是时候离开了。
So the penguins in Antarctica that feed in the open ocean are doing okay; the penguin species that feed by just dropping off the ice shelves, like the Adelie and the emperor (pictured), are declining.
因此，在南极洲远海带捕食的企鹅适应得比较好，而只靠从冰架上跃入水中捕食的阿德利企鹅和帝企鹅(如图所示)则面临衰落。
So the penguins in Antarctica that feed in the open ocean are doing okay; the penguin species that feed by just dropping off the ice shelves, like the Adelie and the emperor (pictured), are declining.
因此，在南极洲远海带捕食的企鹅适应得比较好，而只靠从冰架上跃入水中捕食的阿德利企鹅和帝企鹅(如图所示)则面临衰落。
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