Tetrachlorophenolphthalein
四氯酚酞
🗣️ 情景例句
Why are you leaving your present job?
你为什么要放弃目前的工作？
Because hs is thinking of majoring in this subject at the university.
因为他考虑把此学科作为在大学里的专业。
Did he telephone again last night?
他昨夜里又打电话了吗？