Periods
n. 周期（period的复数）
🗣️ 情景例句
Thanks.
谢谢。
They who cannot do as they would, must do as they can.
不能为所欲为者，也当尽力而为之。
Any ship that crosses the Pacific is accompanied for many days by the smaller albatross,
任何一艘横度太平洋的轮船都会有一种小信天翁伴随飞行许多天。