Microfissure
[化] 显微裂纹
🗣️ 情景例句
About 9:30.
大约九点半。
It has been a long time since last came here.
自从我上次来这里已经有很长时间了。
and beyond six or seven they are worthless.
如果超过六七天，天气预报就没有了任何价值。