Ergonomical
人体功率学的, 工作环境改造学的
🗣️ 情景例句
And I do feel bad about your mother
而且我觉得很过意不去让你母亲
The two parties involved in a contract have the obligation to execute the contract.
合同双方有义务履行合同。
I shook my head and held up five fingers indicating that I was willing to pay $5.
我摇摇头，伸出5根手指表示我只愿出5镑钱。