Allotypy
同种异型性
🗣️ 情景例句
He's had so many colds and sore throats recently.
他最近常常感冒喉咙痛。
I am sorry Mr. Chen is unavailable, would you like to speak to anyone else?
抱歉陈先生不在，你要不要跟其他人讲话？
Oh, good evening, Lucy. Come in. Nice to see you!
噢，晚上好，露茜。请进。见到你真高兴！