When the head begins to heat up, yawning acts as a natural "thermostat" by allowing cool air to rush in and bring the brain back down to a healthy temperature, research suggests.
科学家研究发现，当人的大脑开始出现过热时，打呵欠的动作就充当天然的“自动调温器”，让清凉的空气进入大脑，使大脑温度恢复到健康水平。
You could follow the crowd by working hard and keeping your head down, but will this get you the enhanced career you feel you deserve?
你可以和其他人一样埋头苦干，不过这样做，你能得到你认为自己应该得到的更好的工作机会吗？
The child may respond to a teacher's request for quiet or control by looking away, putting his or her head down on the desk, orsimply ignoring the teacher.
孩子可能以冷漠和撇过去不看他们作为对老师要求的回应，低头对着桌子，直接无视老师的存在。
The wonderful thing is that you may find that you have traveled quite a long way up a mountain, just by keeping your head down and putting one writing foot ahead of the other for a long time.
奇妙的是，你可能发现自己已经在登山途中走了很长的路，继续长时间埋头一步一步写下去。
Only then did the thief understand the whole thing with his head dropped down like the grass was beaten down by the frost.
小偷这才明白是怎么回事，头像遭到霜打的草一样低了下去。
The bride is taken by surprise, by hands down the crummiest friends you could have, and covered from head to toe with all kinds of crap.
新娘措手不及地被最糟糕的朋友下手，从头到脚沾满了各种各样的脏东西。
And they caught every one his fellow by the head, and thrust his sword in his fellow's side; so they fell down together: wherefore that place was called Helkathhazzurim, which is in Gibeon.
彼此揪头，用刀刺肋，一同仆倒。所以，那地叫作希利甲哈素林，就在基遍。
This was apparently the result of a severe head injury incurred when he was hit by a car and flew a long distance in the air before coming down hard on concrete.
他曾被车撞过，被撞出了很远才重重地摔在硬硬的水泥地上。
23 then hear from heaven and act. Judge between your servants, repaying the guilty by bringing down on his own head what he has done.
求你从天上垂听，判断你的仆人，定恶人有罪，照他所行的报应在他头上。
Late at night I got one of those calls. As I was getting ready to head out the door, my husband groggily said, "you're not going down there by yourself at this hour."
一天的深夜我又接到了电话，当我准备出门的时候，睡得昏昏沉沉的老公发话了：这么晚别一个人出去。
Janos Slynt had lifted Ned Stark's head by the hair as his life's blood flowed down the steps, and after that there was no turning back.
杰诺斯·史林特伯爵抓着奈德·史塔克的头发把脑袋提起来，生命之血顺着台阶流下，从那以后就再也没有转圜的余地了。
While walking down the street one day, a Republican head of state is tragically hit by a truck and dies.
有一天，一位共和党领导人走在街上的时候，不幸被一辆卡车撞翻在地。
Take the head down there by pressing the chest down.
通过压胸把头带到这个深度。
Hopefully your baby has positioned herself in a head-down position by now. if she is still sitting with her head upright and feet down, she is in the breech position.
希望你的宝宝已经位于头部朝下的位置了，如果她仍然头朝上脚朝下，她处于臀位出生的位置。
Showing his id as he floats head-down in the singing position, Frank displays the unique pattern of tail markings by which individual humpback whales can be recognized.
显示他的遗传素质本能冲动当他漂浮头朝下在唱歌位置，坦白的展示这独一无二的榜样通过在尾部的标志，个体的驼背鲸是能够识别的。
Almost a year has passed since I came down here at your Head Master's kind invitation in order to cheer myself and cheer the hear ts of a few of my friends by singing some of our own songs.
将近一年前，应贵校校长盛情邀请，我来到这里唱了几首我们自己的歌曲，既为自己加油，也为一些朋友打气。
By the time I spotted him he was far up ahead, walking away through the crowd, hands in his pockets and his head hanging down.
我发现他时，他已经走的很远了，他穿过人群，双手插在兜里，耷拉着脑袋。
A girl right in front of me , by contrast, dons a snow-white coat with its hat fully covering the head. I shoot a glance and see a very nice-looking face with a green scarf hanging down the chest.
而我眼前的这女孩则反弹琵琶，她穿了件雪白的羽绒服，直接将帽子从头裹下，我瞥了一眼，青眉秀目胸口一袭绿色的围巾。
A third video, posted on Youtube, showed excited fighters hovering around his bloody but motionless body, posing for photographs, and some fighters yanked his limp head up and down by the hair.
发布在Youtube上的第三个视频显示，兴奋的士兵在他一动不动的尸体旁转悠，摆姿势拍照，一些士兵扯着他的头发，上上下下猛拉他已经毫无生气的头。
Run-in heads, such as "Abstract", will require you to apply a style (in this case, italic) in addition to the style provided by the drop down menu to differentiate the head from the text.
即将来临，如“抽象”，将会需要你申请一个风格（在这种情况下，斜体）除了风格的规定下拉菜单划分的头从文本。
Exit Room 27 and head right down the hall towards you by clicking at the bottom of the screen.
退出房间27和头部沿着这对你会堂在屏幕的下方点击。
Suddenly I was hit by something in the head. I looked down to see a lemon on the ground and looked up to see a guy yelling at me in a car that was passing.
我低头，看到地上有一个柠檬，再抬头看到路边的一个家伙坐在车里朝我大喊。
When I finished reading the novel the Resurrection written by Tolstoy in tears several years ago, I wrote down such words on the head page: Life itself is a tragedy.
几年前我流了眼泪读完托尔斯泰的小说《复活》，在扉页上写了一句话：“生活本身就是一个悲剧”。
To at least slow down the growth of tumor cells that have remained in the head, almost all glioblastoma patients are treated by radiotherapy after surgery.
为了尽可能减慢残存肿瘤细胞的生长，几乎所有胶质母细胞瘤患者术后进行放射治疗。
You get out and fall down by the road and get a bump on your head and I'll pick you up on our way back and take you to a hospital.
你还是下车吧。你在路边想法子在头上撞它一个伤口，我车子回来时就送你上医院。
You get out and fall down by the road and get a bump on your head and I'll pick you up on our way back and take you to a hospital.
你还是下车吧。你在路边想法子在头上撞它一个伤口，我车子回来时就送你上医院。
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