Don't be too downhearted. There's always a way.别太悲观了，总有办法的。Max sighed, sounding even more downhearted.马克斯叹了口气，听上去更沮丧了。We're disappointed by these results but we're not downhearted.我们对结果感到失望，但是并未丧失信心。T...
齿轮互相啮合.The teeth of the wheel gear into each other.这个大齿轮带动小齿轮使滚筒旋转.This large gear turns the small one to rotate the cylinder.天气冷时齿轮润滑油可能凝结而形成凹槽.Gear lubricants may congeal and channel in cold weather....
The atomization process is more sensitive to disturbance than vaporization.雾化过程比汽化过程对扰动更为敏感.Three factors affect ignition, fuel vaporization, sparkplug location and spark energy.影响点火的因素有三个, 即燃油的蒸发 、 火花塞的位置和火花能量.A similar...
He pursued her relentlessly, refusing to take ‘no’ for an answer.他锲而不舍地追求她，拒不接受“不”的回答。Journalists caught a whiff of scandal and pursued the actress relentlessly.记者抓到了丑闻的一点线索，于是对这个女演员穷追不舍。...a relentlessly upward career t...