快慢的英文：
speed

参考例句：
  • Regulator head (for two-piece regulator)
    快慢针头(对开快慢针用)
  • The government lost the argument over the pace of reform.
    政府在有关改革步调快慢的争论中是输家。
  • Cancers are described as more or less malignant in proportion as they are more or less rapidly growing and invasive
    癌生长的快慢和侵袭性的大小与它的恶性程度成正比。
  • If accretion takes place in eccentric orbits as well, the rotation will be prograde and of the right order of magnitude
    如果吸积发生在偏心轨道，则自转将是正向的，且快慢也合适。
speed是什么意思：
n. 速度，速率；快速，迅速
v. 迅速前进，快行；促进；加速，使加速
  • The speed of a train differs greatly from the speed of an airplane
    火车的速度与飞机的速度大不相同。
  • The car is gaining speed.
    那辆轿车正在加速。
  • The worker is timing the speed of the machine.
    这名工人正在调整机器的速度。
  • a dizzy height, speed
    使人眩晕的高度、 速度.
  • Speed the parting guest
    祝客人一路顺风

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