Varitrol
“伐里脱罗”(一种自动调节系统)
🗣️ 情景例句
Number 1 train to Van Cortlandt Park. Thank you.
一路车到Van Cortlandt公园。谢谢。
I haven't heard from him for a long time.
我很久没有收到他的信了。
Do we need some more hot water?
我们还要些热开水吗？