Babies are apt to put objects into their mouths.
婴儿爱把东西往嘴里塞。
He had to feed his family on the equivalent of seven hundred dollars a month and, with five mouths to feed, he found this very hard.
他每月不得不用相当于700美元的钱来养家，5张嘴等着吃饭，他觉得很困难。
What kind of flowers have mouths?
什么花有嘴呢？
他们张开了嘴巴。
They got their tails fast in their mouths.
它们把尾巴紧紧地叼在嘴里。
They opened their mouths, but the cheers would not come.
他们张开嘴，但却欢呼声没有传来。
They have their tails in their mouths, and they're all over crumbs.
它们把尾巴放在嘴里，身上全是面包屑。
Most people use their mouths to talk, but do you know some people use their hands to speak?
大多数人用嘴说话，但是你知道有些人也用手说话吗？
Every year, millions of salmon swim from the ocean into the mouths of rivers and then steadily up the rivers.
每年，数百万条鲑鱼从海洋游到河口，然后稳定地逆流而上。
Primates specialise in savoring the many millions of flavor combinations that they can create for their mouths.
灵长类动物特别擅长于为它们的嘴巴创造数百万种不同的味道组合。
However, similar changes occurred when the subjects were asked simply to open their mouths or to breathe deeply.
然而，受试者仅仅被要求张嘴或深呼吸时，也有类似的变化发生。
Because they are always swimming, tunas simply have to open their mouths, and water is forced in and over their gills.
因为它们总是在游泳，所以金枪鱼只需要张开嘴巴，水就会被强行灌进它们的鳃里。
Visual and sound cues contribute, such as crunching, as does touch, including the texture and feel of food on our lips and in our mouths.
视觉和声音线索也有影响，比如嘎吱嘎吱的声音，还有触觉，包括食物在嘴唇上和嘴里的质地和口感。
Our mouths and tongues have taste buds, which are receptors for the five basic flavors: sweet, salty, sour, bitter, and umami, or what is more commonly referred to as savory.
我们的嘴巴和舌头上都有味蕾。味蕾是五种基本味道的感受器：甜、咸、酸、苦和鲜味，也就是通常所说的咸味。
"Nature gave us lips to conceal our teeth," ran one popular Victorian maxim, alluding to the fact that before the birth of proper dentistry, mouths were often in a shocking state of hygiene.
维多利亚时代流传着一则箴言：“造物主赋予人类嘴唇以遮掩牙齿”。这暗示了在严格意义上的牙科学诞生之前，口腔的卫生状况往往非常糟糕。
I've warned them to keep their mouths shut about this.
我警告他们对此事要守口如瓶。
No one wants to employ somebody who bad-mouths their former employer.
没有人愿意雇用说前雇主坏话的人。
他们从不开口。
Frogs can breathe (呼吸) without their mouths!
青蛙可以不用嘴巴呼吸！
These fish have small eyes, large heads and mouths.
这些鱼眼睛小，头和嘴大。
I have 11 hungry mouths to feed and I need your help!
我有11个人嗷嗷待哺，我需要你的帮助！
In many countries, people put their fingers up to their mouths to ask for silence.
在许多国家，人们把手指放在嘴上以要求安静。
Most of us, if we know even a little about where our food comes from, understand that every bite put into our mouths was formerly alive.
我们中大多数人，如果对食物的来源有过一点了解，就会明白我们吃的每一口食物都曾经是有生命的。
The bays and the river mouths where the tide is high (the tidal range is more than 10 metres) are usually perfect sites to build tidal power stations.
潮汐高（潮差超过10米）的海湾和河口通常是建造潮汐发电站的理想位置。
And then they opened their mouths.
接着有人开口了。
A rumour goes in one ear and out many mouths.
一个人听见的流言肯定是从许多人嘴里传出来的。
Watch the mouths and tongues of native English speakers carefully.
仔细观察本土人士讲英语时的嘴型和舌位。
Bacteria - We have many different strains of bacteria in our mouths.
细菌—我们口腔里是有不同类型的细菌的。
I like to think of them as akin to mouths (botanists, forgive me!)
我喜欢把它们认为是嘴的同种物品(植物学家们，原谅我！)
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