Sealing system
[化] 密封系统
🧩 词语组成解析
[化] 封闭; 封闭处理\\n[医] 封闭, 封口(创伤)
🗣️ 情景例句
No, thank you. It's too late. I really have to go.
不，谢谢。太晚了，我真的该走了。
Why are you going back?
你为什么回来？
He speaks some Chinese, but not much.
他讲点汉语，但是不多。