Oxindol
羟吲哚
🗣️ 情景例句
I say forget about the whole plan.
要我说，还是把整个计划忘掉吧。
He cleans th badroom every day.
他每天都清理卧室。
It is much cheaper to post or email a long report than to fax it.
邮寄或电子邮递一封长篇报告比传真要便宜得多。