It is easy to make sounds while keeping your mouth closed.

闭着嘴很容易发出声音。

It's important to keep your mouth securely closed at all times.

要时刻保持口腔紧闭。

“You keep your mouth closed while you’re eating! ” Mrs. Weasley snapped.

“吃饭的时候不要说话！”韦斯莱夫人厉声说。

Most species can open and close their mouths to pump the water through.

大部分的物种可以透过开口与闭口的方式将水运送通过鳃。

After awhile he allowed me to close my mouth and summoned my mother.

过了一会他让我闭上嘴，然后叫我妈妈进来。

Then Moody closed his mouth and turned his blue eye upon Snape again.

然后穆迪闭上嘴巴，又将他的蓝眼睛转到了斯内普身上。

Ron went as brightly pink as Lockhart's valentine flowers and closed his mouth again.

罗恩的脸顿时变成了鲜艳的粉红色，就像洛哈特送给大家的情人节鲜花，他的嘴巴也闭上了。

'I'll whisper it, ' said Haigha, putting his mouth close to the King's ear.

“我悄声告诉你。”黑格凑近国王的耳朵说话。

So while you're thinking, try to keep your mouth closed and avoid these crutch sounds.

因此当你在思考的时候，尽量保持嘴巴紧闭，避免这些拐杖词。

Fudge was opening and closing his mouth as though no words could express his outrage.

福吉的嘴巴张开又合上，似乎没有语言能表达他的愤怒。

Mother Bruin then closed the mouth of the cave with brushwood, and the bears fell asleep.

熊妈妈布伦用灌木把洞口封住，然后熊们就睡觉了。

A man who blabbers keeps talking and talking, as if he can't keep his mouth closed.

喋喋不休的人（a man who blabbers）一直不停地说，好像他的嘴合不拢一样。

Ai-Da will make eye contact and follow you around the room, opening and closing her mouth as you do.

艾达能与人目光交流，跟着人在房间内走动，并像人一样张嘴和闭嘴。

You want to keep your mouth closed.

你想闭嘴。

He moved his mouth closer to the phone.

他把嘴凑近了电话。

She closed her mouth slowly and nodded once.

她缓缓闭上嘴， 点了点头。

He closed his mouth very slowly, very tight.

他的嘴闭得很慢， 很紧。

She closed his mouth with a shrug of her substantial shoulders.

她耸了耸坚实的肩膀， 闭上了他的嘴。

Close your mouth when you eat.

嘴巴有东西不要说话。

Close your mouth before you chew.

你嚼的时候把嘴闭上。