sissy

The older boys called him a sissy because he refused to climb the high wall.

用法提示：sissy 是可数名词，作“called him”的宾语补足语，表示他们觉得他缺乏勇气。

Don't be a sissy; just jump into the pool!

用法提示：sissy 作名词，用在祈使句“Don't be...”中，意思接近“胆小鬼/懦夫”。

Sissies are often teased at school, which is why he acted so tough.

用法提示：sissies 是 sissy 的复数形式，作句子的主语，泛指被认为胆怯的男孩。