n.

1. 弹幕
2. 阻拦；阻塞
3. 齐射式攻击；猛烈的攻击

vt.

1. 以密集火力攻击（或阻击）

vi.

1. 火力攻击（或阻击）

n.

1. a concentrated artillery bombardment over a wide area.
2. an overwhelming number of questions or complaints delivered in rapid succession.
3. an artificial barrier across a river, to prevent flooding or to aid irrigation or navigation.

v.