🧩 词语组成解析
[医] 焦耳氏当量(热功当量)
[医] 电子\\n[经] 东
n. 约翰斯顿（姓氏）
🗣️ 情景例句
Tell me about your educational background.
告诉我你的学习背景。
You forgot to fasten the collar buttons.
你忘了系鞋带。
What you have just said does hurt him.
你刚才说的话真伤他的心了。