roar [rɔ:(r)]

以下由轻松背单词网站提供

n.吼，咆哮，轰鸣，喧闹；vi.吼叫，大声说出，喧闹；vt.呼喊，使轰鸣

to make a long , loud , deep sound

He began to roar when I took the chocolate away. 当我把巧克力拿走时，他大哭起来。
The machines roar incessantly during the hours of daylight. 机器在白天隆隆地响个不停。