Micro-cracks
(micro-crack 的复数) 微细龟裂
🧩 词语组成解析
[计] 表示\小\\微\\微量\\百分之一\
n. 裂缝, 裂纹；板间间隙；龟裂（crack的复数形式）
🗣️ 情景例句
What's up?
有什么事？
His presence in the room was not noticed.
没有人注意到他在房间里。
All he knew was that his African ancestor taught his son and grandson the words in his own language for river and guitar.
他所知道的只是非洲祖先用自己的语言教给儿孙们的“江”和“吉他”这两个词。