Abrasiometer
[化] 磨耗试验机
🗣️ 情景例句
Do I know you?
我认识你吗？
We have an extended warranty available at extra cost.
对于额外价钱我们有较长的保证期限。
Hello, Jim. Good! You're at home. How are you?
你好，吉姆，太好了，你在家呢！你好吗？