Ldr
abbr. 光敏电阻（light dependent resistor）
🗣️ 情景例句
There's a time for everything.
事情要一件一件地做。
They teach you English in an intensive course lasting just a week.
他们用一周的时间教速成英语课程。
CUSTOMS OFFICER: Are you tourists?
你们是来旅游的吗？