双解例句
小知识
Speedy means super fast! If you're a speedy driver, you keep your foot on the gas pedal and zip by all the slowpokes. Speedy is also the nickname for a cartoon who is “the fastest mouse in Mexico.”
Anything that's speedy moves with rapid speed, whether it's a bullet train or a waiter bringing coffee before you’ve even finished ordering it. If your brother sends you on an errand, he might call, “Be speedy!” especially if you're known for taking your time. The Old English root of speedy is spedig, which curiously means “wealthy.” A now old fashioned meaning of “speed,” in fact, was “success” or “prosperity.”
实用短语
同义词辨析
这几个形容词都有”快，迅速”之意。
同义词
同根词
词根：speed
adj.speeding高速行驶的
adv.speedily迅速地；赶紧
n.speed速度，速率；迅速，快速；昌盛，繁荣
speeding超速行驶
speeder快速行动的人或物；调节速度装置
speediness快速；迅速
v.speeding促进（speed的ing形式）
vi.speed超速，加速；加速，迅速前行；兴隆
vt.speed加快…的速度；使成功，使繁荣