Pit corrosion
[化] 点蚀
🧩 词语组成解析
pit
[pit]
n. 井;煤矿;麻子;（赛车道旁的）修理加油站;
vt. 使有麻子;使有凹陷;
vi. 凹陷;起凹点;
🗣️ 情景例句
Are there any tours for the Grand Canyon?
有到大峡谷的旅游团吗？
OK. Your plans are always successful.
OK，你的计划常常无往不利！
So she's been at this school since September?
这么说来，她自9月份才在这所学校学习？