She glared down at me with a peevish expression on her face.
她低头瞪着我，一脸怒气。
She looked down with a despondent expression on her face. “I know,” she said.
她摆出一副懒散的表情，说：“我知道。
One such example is when the pushed down query is a common sub-expression.
一个例子就是被下推的查询是一个公共子表达式。
Shut him down when there is an expression of pain.
当他有痛苦的表情时，让他停下来。
Shut him down when there is an expression of pain.
当他有痛苦的表情时，让他停下来。
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