vi.咆哮,喧闹,吼叫,混乱或吵闹
vt.大声喊出,使…轰鸣,吼,咆啸
n.吼叫声,咆哮声,呼啸声,狂笑,大笑
Now and then they heard the roar of a heavy truck.
他们不时地听到大卡车的轰鸣声。
A roar of approval resounded through the Ukrainian parliament.
一片赞成声在乌克兰议会中回响。
Local residents saw it plunge towards Earth with a deafening roar.
当地的居民看见它伴着一声震耳欲聋的巨响撞向地面。