Phyllospadix
虾海藻属
🗣️ 情景例句
That's right.
是的。
Never show the bottom of your purse or your mind.
钱包不露底，思想需保留。
but that was precisely the idea adopted in some of the early instruments (seismometers) for recording earthquake waves.
但是早期记录地震波的仪器（测震仪）正是采用了这种思路。