yawn

打哈欠

He yawned loudly in the middle of the afternoon meeting.

他在下午的会议中大声打了个哈欠。

打著哈欠说

"I'm going back to bed," she yawned.

「我要回去睡了。」她打著哈欠说。

裂开、张开多用于书面

A deep crack yawned in the ground after the earthquake.

地震过后，地面上裂开一道深沟。

哈欠

She covered her mouth to hide a yawn.

她用手遮住嘴，想掩住一个哈欠。

乏味的事物、无聊的东西口语

The second half of the movie was a complete yawn.

这部电影的后半段无聊得不得了。