Nuclear reaction
[化] 核反应
🧩 词语组成解析
🗣️ 情景例句
Is this harmful to kids?
这对孩子有害吗？
Paul started with surprise when Jim tapped his shoulder.
当吉姆拍了保罗的肩膀时，保罗吓了一跳。
He say he's just arrived in Scotland. He says he's staying at a Youth Hostel.You know he's a member of the Y.H.A.
他说他刚到苏格兰。他说他住在一家青年招待所。你知道，他是“青招协”的一个成员。