Ventless
a. 无孔的, 无出口的
🗣️ 情景例句
Stone has been out of work for three months.
世通已失业三个月了。
What now?
现在要怎样？
For example, we make bicycle parts and tractor parts. Any questions?
例如，我们制造自行车和拖拉机的零部件。 有什么问题吗？”