Elementary substance
[化] 单质
🧩 词语组成解析
🗣️ 情景例句
I appreciate it very much.
我非常感激你的帮助。
If you adhere to the route on the map, you won't get lost.
如果你完全按照地图上的路线走，你就不会迷路。
Just now we all watched you sign to show that you had received the cheque.
刚才我们大家都观察到了你为表明已收到那张支票而签名。