Sandmeyer's reaction
[机] 山德酶耶反应
🧩 词语组成解析
🗣️ 情景例句
What's my account balance?
我的户头还剩多少钱？
No sooner said than done.
言而必行。
The airport was built years ago, but for some reason it could not be used then.
机场是许多年前建的，但由于某种原因当时未能启用。