Dcb
[计] 数据和控制总线, 数据控制块
🗣️ 情景例句
Anytime.
随时找我。
Can you make it?
你能来吗？
This would solve the problem of ventilation, for if a train entered this tunnel, it would draw in fresh air behind it.
因为如果有列火车开进隧道，它就把新鲜空气随之抽进了隧道。