Selftest
自身测试
🗣️ 情景例句
You should take the number 1 subway.
应当搭一路地铁。
Will you bring the laundry in if it rains?
下雨时请你收一下衣服，好吗？
small at first, narrowly contained within its banks,
开始很小，被紧紧地夹在两岸中间，