mouth：n.嘴;口;需要供养的人;入口;开口；
v.(动嘴唇)不出声地说;言不由衷地说；
第三人称单数： mouths 复数： mouths 现在分词： mouthing 过去式： mouthed 过去分词： mouthed
Her mouth felt as dry as a bone.
她感到口干舌燥。
Don't talk with your mouth full.
不要一边吃一边说话。
She opened her mouth to say something.
她张开嘴要说什么。
The news spread by word of mouth.
这消息是口头传开的。
She put her hand over her mouth to stop herself from screaming.
她用手捂住嘴，以免叫出声来。
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