他落地时双脚先着地。
Enter the water carefully and feet first.
小心入水，脚先入水。
Go in feet first so that you can know how deep the water is.
脚先入水，这样你就能知道水有多深。
If possible aim to land feet first.
如果可能的话，尽量让脚先着地。
首先，将注意力集中在脚上。
In fast, shallow water, swim on your back, feet first.
在浅而急的水中，要用仰泳，先蹬腿。
Then he flung outward, feet first, with a swish, Kicking his way down through the air to the ground.
然后，纵身一跳，他两脚先伸出去，在空中乱踢乱舞，于是飕的一声，降落到地面。
Cats are champs at landing feet first over short distances, thanks to a highly flexible backbone.
多亏了那灵活的脊柱，猫称得上是短距离坠落后用脚着地的冠军。
I decided to jump into the robotics water feet first and hoped that the water wouldn't be over my head.
我决定跳入机器人技术的水池中，但愿我不会被淹到。
The only change (in 1965) has been to require senators to shuffle out of the door when they turn 75 rather than waiting to be carried out feet first.
唯一的变化（在1965年）是要求参议员不等被移出就自动扫地出门。
I squirmed around so that I could go down feet first and, keeping my other hand on the stone overhead, I found that the ceiling did not drop as the stairs did but drew away as the stair descended.
我蠕动着转过身，这样我就能先把脚伸下去，并把我的一只手放在头顶的石头上，我发现天花板没有随着楼梯降低。
The first wrongly assumes that the pterosaurs' hind feet resembled a bat's and could serve as hooks by which the animal could hang in preparation for flight.
第一个（假设）错误地认为翼龙的后脚类似于蝙蝠的后脚，可以作为钩子，用来挂起来准备飞行。
A young English botanist named Charles Darwin, the author of the theory of evolution, was the first European to see alerces, with trunks that had a circumference of 130 feet.
进化论的作者、年轻的英国植物学家查尔斯·达尔文，是第一个看到落叶柏树干圆周长达一百三十英尺的欧洲人。
I'm very happy about my first prize in the English competition, but I also know that I must keep both feet on the ground and learn more.
我很高兴我在英语竞赛中获得一等奖，但我也明白我必须脚踏实地继续学习。
McGillicuddy looked into the lighted first-class carriage that was only a few feet away.
麦吉利库迪朝离他只有几英尺远的亮着灯的头等车厢里望去。
She received the Guinness World Record for being the first person permitted to fly an airplane with only her feet.
她获得了吉尼斯世界纪录，成为第一个被允许只用脚驾驶飞机的人。
The first combination form is a small multiple use table and an infanette with guard rails and feet.
第一种组合形式是一个小型的多用途桌子和一个带有护栏和支脚的小婴儿床。
First Marconi sent the Morse code letter s a distance of 300 feet.
马可尼首先将摩尔斯码的字母s发送了300英尺远。
As the crew struggled to regain control, the plane dropped 38, 000 feet in just three and a half minutes, tail first, killing all 228 people on board.
机组人员努力试图重新控制的时候，飞机在三分半钟的时间内降落了38,000英尺，尾部首先坠落，造成机上228人全部遇难。
First, I will see if any vacant units of around one thousand square feet are available.
我会查看是否有一些约一千平方英尺的单位。
For the first few thousand feet above sea level the rate of pressure decrease is in the neighbourhood of 1 inch of pressure for each 900 to 1000 ft.
在离海面几千英尺高度上(在拔海高度数千英尺以下)气压递减率大约是每900到1000英尺高度下降1英寸汞柱左右。
He said he had made his first cautious flight only two feet up at first.
他说他终于谨慎的进行了第一次试飞。在这次试飞中，他的飞行器只飞离地面两英尺。
By liberal estimates, we've explored about 5 percent of the seas, and nearly all of that in the first 1,000 feet.
据粗略估计，人类已经勘探的海域只占海洋总面积的大约5%，而差不多所有已勘探区域都在海底1,000英尺以上。
When my mom tried to start running she wore old tennis shoes and of course her feet and knees started to hurt after the first 5 minutes.
当我老妈尝试跑步时穿的是旧网球鞋，自然，她的脚和膝盖在开跑5分钟后就开始疼了。
Before jumping into the example application, you might want to get your feet wet first by taking a closer look at the three technologies that will be used to create and deploy the application.
在学习示例应用程序之前，首先要详细了解一下将用于创建和部署该应用程序的三种技术。
The 3,900 square feet would accommodate the largest of families, but first the gutted equipment cabinets would have to be removed.
3900平方英尺的面积，再大的家族也容纳得下。不过首先得把那些烧毁的设备柜移走。
According to the Census Bureau, the median size of home starts dropped to 2, 114 square feet in the fourth quarter of 2008, down more than 100 square feet from the first quarter of the year.
根据人口普查局的调查结果，2008年第四季度，新房面积的中位数降到了2114平方英尺，比第一季度少了100多平方英尺。
A habitat called Sundancer, with an inflated volume of about 6, 400 cubic feet, would launch first.
第一艘发射升空的是被称为太阳舞者的生活舱，它的膨胀体积可达180立方米。
This bridge is the world's first to have four railway tracks, each spanning about 1, 700 feet.
它是世界上第一个拥有四条铁轨的大桥，而且每一条铁轨跨度大约为518米。
This bridge is the world's first to have four railway tracks, each spanning about 1, 700 feet.
它是世界上第一个拥有四条铁轨的大桥，而且每一条铁轨跨度大约为518米。
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