I was sure she knew the answer but for some reason she hung back.
我敢保证她知道答案，但不知为什么她不敢说出来。
他在回答前犹豫了一阵子。
We hung back to let our parents go in first.
我们退了回去，让父母先进。
He wanted to call his wife, but always hung back.
他想给妻子打电话，但总是踌躇着。
The bridge looked unsafe and so we all hung back in fear.
桥看上去不安全，所以我们都没有上去，担心万一出事。
但范妮仍然踌躇不前。
The child always hung back from any activities.
那个孩子总是什么活动都不愿参加。
Often I hung back after classes to ask more questions.
课后我常常留下来再问一些问题。
When volunteers were asked for, not one man hung back.
当征求志愿者时，没有一个人退缩。
The big boys jumped into the river but little Ned hung back.
大些的男孩子都跳进河里了，但小内德畏缩不前。
The big boys jumped into the river, but little Ned hung back.
大些的男孩都跳下河了，但小内德畏缩不前。
Tom offered the little girl candy, but she was shy and hung back.
汤姆给这小女孩糖果，但她害羞而不敢要。
When the police came around asking questions, he hung back from giving information.
警察前来询问时，他迟疑不决，不敢报告情况。
When the police came around asking questions, he hung back from giving information.
警察前来询问时，他迟疑不决，不敢报告情况。
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