Watchtower
[ ['wɔtʃˌtauə] ]
初中 Junior High
n. 了望塔
🗣️ 情景例句
Have you anything dutiable?
您有应缴税的东西吗？
I'll connect you with his office.
我会打电话到他的公司和你联络。
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）。