1·He crossed his arms over his chest.
他在胸前交叉双臂。
—— 《柯林斯英汉双解大词典》
2·He crossed his fingers, asking for luck for the first time in his life.
他把手指交叉起来，平生第一次祈求好运。
—— 《柯林斯英汉双解大词典》
3·Jill crossed her legs and rested her chin on one fist, as if lost in deep thought.
吉尔两腿交叉，下巴抵在拳头上，似乎陷入了沉思。
—— 《柯林斯英汉双解大词典》
4·Some lines shouldn't be crossed.
有些线路不能交叉。
5·I crossed my arms.
我将双臂交叉起来。