🧩 词语组成解析
order
['ɔ:də]
n. 命令;秩序;规则，制度;次序;
vt. 命令;订购;整理;
vi. 下订单;
n. 带栉水母目；带水母目
🗣️ 情景例句
Remember?
记得吗？
Don't tell anyone that I did it.
别说是我做的。
and a period (which is the time it takes a wave crest to travel one wave length).
和周期（浪峰走过一个波长所需的时间）。