机械零件的加工质量指标主要有加工精度和表面质量。
参考答案:对
单词拼写。
1. Knives are used for (切割) things.
2. I plan to improve my (发音) by having conversations with native speakers.
3. The whole room was really (充满) of smoke.
4. She's been (结婚) for two years.
5. Tom, (翻译) these sentences into Chinese.