Indocarbon
靛炭(一种硫化染料)
🗣️ 情景例句
Do you have any openings for a typist?
你这里缺打字员吗？
I told him to come in for a few minutes.
我告诉他进来等几分钟。
Excuse me. Is there a post office near here?
请问，附近有邮局吗？