Indispensability
出国 Abroadn. 不可缺少, 责无旁贷
✅ 同义词
🗣️ 情景例句
and leave the number with the baby-sitter.
把餐厅的电话告诉临时保姆。
Labour is often the father of pleasure.
勤劳常为快乐之源。
Yes, that's right.
是的。