Silicea
硅剂
🗣️ 情景例句
Food is necessary to maintain life.
食物是维持生命所必须的。
As soon as I can,I'm going to change jobs.
一旦我可以,我将换工作。
Among these I would list string and brown paper, kept by thrifty people when a parcel has been opened, to save buying these two requisites.
这些东西中我想举出线绳和包装纸为例。节俭的人们打开包裹后便把这两样必备的东西收藏起来。省得日后去买。