Retractometer
收缩仪
🗣️ 情景例句
Thank you. Would you like something to drink? A cup of coffee?
谢谢。你想喝点儿什么？来杯咖啡吗？
Laugh before breakfast you'll cry before supper.
乐极生悲。
the man sadly picked up the mattress and carried it into his house.
伤心地捡起了床垫，把它拿进了屋。