Houdryforming
[化] 胡得利催化重整
🗣️ 情景例句
At today's exercise class...
今天上健身课的时候……
How long is the ride?
要坐多久？
Jim is writing. Lily isn't writing. She's looking at the blackboard.
吉姆在写字。莉莉没在写字。她在看黑板。