adjective [原级] 交替的；交互的
They were streaked with alternate bands of colour. 他们都带有色彩交替相间的条纹。
verb [vt. 及物动词] 使交替；依次（alternate 的 ing 形式）
Jack ran to do a side turn, jumped up and grabbed the monkey rod, and pulled himself across rapidly alternating his hands. 杰克跑着做了一个侧手翻，跳起来抓住猴杆，双手交替着将自己迅速拉到对岸。
