Photocatalyzer
光催化剂
🗣️ 情景例句
Your health has really gone to pot.
你的健康真的很糟糕。
Hello, may I change some money with my Master card?
我能否用万事达卡来兑换些钱吗？
Can she type this letter for me?Ask her please.
她能为我打一下这封信吗？请问她。