Metalanguages
(metalanguage 的复数) n. 元语言\\n[计] 元语言
🗣️ 情景例句
He's been here for years, he should know the ins and outs of the job by now.
他在这里已经好多年，现在理应熟悉各方面的工作了。
Tell us about your post-purchase servicing.
告诉我们有关你们售后服务的情况。
Easy come easy go.
来得容易，去得快。