Precrack
[化] 预制裂纹
🗣️ 情景例句
Oh! I just drop in on him for a chat.
哦，我只是顺便来和他聊聊天。
To sum up, she is a nice girl.
总之，她是个可爱的女孩。
Lined up against the wall, there were long thin wires attached to metal spheres.
靠墙排列着许多细长的电线，而电线又连着金属球。