Multistage reactor
[化] 多级反应器
🧩 词语组成解析
a. 多级的, 多阶段的\\n[机] 多级
🗣️ 情景例句
As far as English is concerned, he is second to none.
就英语来说，没有人能够比得上他。
Drop me a line.
写封信给我
The contract will be sent to you by air mail for your signature.
合同会航邮给你们签字。