Microcracking
显微裂纹
🗣️ 情景例句
Smoking is addictive, and causes cancer, But the point I most want to emphasize is that it damages the health of those around you.
吸烟会上瘾，会引发癌症。但我最想说的是，吸烟同时也有损你的健康。
Thank you very much.
太谢谢你了。
Most business letters around the world are written in English.
世界上大多数商务信函都是用英语写的。