hung back

• v. 犹豫(踊跃不前；畏缩)

hung back的用法和样例：

例句

1. I asked him to have a try, but he hung back.
   我要他试一下，但他迟疑不定。
2. My friend promised me to help me if we meet any wild beasts when we travelled through a forest, but when the bear came up, he hung back.
   我的朋友答应，一旦我们在穿越森林时遇见野兽，他一定帮助我。但是当熊走近时，他却退缩了。