Hec
abbr. heavy-enamel single-cotton 厚漆单层沙包
🗣️ 情景例句
I was wondering if you'd like to go to a movie with me.
不知道你是否有兴趣和我一起去看电影。
A forest fire has consumed all the trees here.
一场森林大火将此地的树木焚烧殆尽了。
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。