Rackscope
支架式示波器
🗣️ 情景例句
Life has its ups and downs, but it certainly has its rewards.
人生有沉也有浮，但是无论怎样都确有其价值。
You'll hurt your arm, if you don't take care.
你不专心的话，就会伤到你的手指。
This decline in vigour with the passing of time is called ageing.
生命力随时间的流失而衰退叫做衰老。