Photonphysics
光子物理学
🗣️ 情景例句
And be a true member of the Stewart family.
也真正成了Stewart家庭中的一员。
That's a beautiful leather wallet,but it costs too much.
那是一个美丽的皮革钱包，但是它太贵了。
Tom said that he was feeling ill.
汤姆说他不舒服。