D-c block
[电] 直流闭塞
🧩 词语组成解析
block
[blɑk]
n. 块;街区;<英>大楼，大厦;障碍物，阻碍;
vt. 阻止;阻塞;限制;
🗣️ 情景例句
This is really neat!
太好了
How long will you remain in the United States?
你将会在美国逗留多久？
There are many things to be learnt when you start working.
开始工作时，你有许多东西要学。