Aerocasing
氰化钙液体氰化法, 钙盐氰化
🗣️ 情景例句
We were married almost fifty years.
我们结婚将近五十年。
Have a nice day.
祝您好。
becomes so worn and unreliable that it eventually is not worth mending.
磨损太厉害，老得一点儿也不准了，最终会不值得修理了。