Palpatorium
[医] 触诊器
🗣️ 情景例句
She hasn't been employed for six months now.
她已经失业半年了。
How much will it cost?
这种商品成本价是多少？
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）。