Hytron
哈特龙电子管
🗣️ 情景例句
We'd wait until dark and make a fire,
我们等到天黑就升火，
I used to work until nearly 6:00 o'clock each day.
我过去每天常工作直到将近6:00点钟。
'You should have declared that.
“你刚才应该申报，