Tetrachlorophenolphthalein
四氯酚酞
🗣️ 情景例句
Please send me a post card.
记住给我寄名信片。
Are you free tomorrow?
你明天有空吗？
Luckily the weather was not so wet as it is today.
幸运的是，那天的天气不像今天这样有雨。