Staled
v. 变陈旧（stale的过去式与过去分词形式）
🗣️ 情景例句
It's not difficult.
这不难。
I hope you'll be well soon.
祝你早日恢复健康。
The man had connected the air-line to a supply line of oxygen, not compressed air.
这个工人把供气管接到了氧气供应管上，而不是接到压缩空气管上。