J.
[医] 焦耳氏当量(热功当量)
🗣️ 情景例句
and to read along with the children--their children.
和孩子们--他们的孩子们， 一起阅读。
I'll treat you to dinner.
我想请你吃饭。
Rays from the sun excite and energize the atmosphere of the earth,
太阳光刺激了地球的大气层，并给予它能量；