Commodity polymer
[化] 通用高分子
🧩 词语组成解析
🗣️ 情景例句
I've been invited to give a talk at the conference.
我已受邀在大会上发言。
Take care.
请保重。
So he had gone to the stores and had obtained a fixture that fitted both the tap on the supply line and the end of the air-line.
所以他就到仓库找到一个既适合供应管也适合供气管的接头。