to make a mouth

做鬼脸。

Be all mouth and trousers

【口】喜吹牛而不务实。

be born with a silver spoon in one's mouth

生于富裕之家。

Butter would not melt in his mouth.

装出一付老实面孔；虚情假意。

by word of mouth

口头地。

down in [at] the mouth

【口】沮丧。

foam at the mouth

(非正式用法)暴怒。

from mouth to mouth

口口相传；一传一地。

give mouth

(狗)吠。

give mouth to

吐露；说出。

have a big mouth

【俚】说话无顾忌、露骨。

have a foul mouth

嘴巴脏、爱骂人。

have one's heart in one's mouth

忧心忡忡。

in (sb's) mouth (=in the mouth of sb)

由(某人)说来。

keep ones mouth [trap]

不要大嘴巴；不要泄露秘密。

laugh on the wrong side of one's mouth

高兴得太早。

live from hand to mouth

仅够糊口。

make a (wry) mouth [make mouths]

咧嘴；作鬼脸(不赞成等的表情)。

make (sb's) mouth water

使(某人)垂涎；使(某人)羡慕。

open one's mouth too wide

做过分的要求；狮子大开口；敲竹杠。

place one's head in the lion's mouth

置身险境。

put on a poor mouth

【美】叫穷；以贫穷为籍口。

put words into (sb's) mouth

说是(某人)那么讲的；教(某人)怎么说。

shoot off one's mouth

不着边际地说个没完。

shut sb's mouth [trap]

【口】杀人灭口。

(straight) from the horse's mouth

直接得来的，来源可靠。

take the words out of (sb's) mouth

抢先说出(某人)要说的话。

with full [open] mouth

大声地。

with one mouth

异口同声。