Lifeguarding
(lifeguard 的现在分词) n. 卫兵, 禁卫军, 救生员
🗣️ 情景例句
Years of work went into these pictures.
多年心血换来这些照片。
It's nothing.
小事情；不足挂齿。
Yes, he has.He sold it last week.
是的，卖掉了。他上星期卖掉的。