upwind

adj, adv ~ (of sb/sth) in the direction from which the wind is blowing 上风向的; 逆风的; 顶风的: If we're upwind of the animal it may smell our scent. 要是我们处於那动物的上风位置, 它就能闻到我们的气味.

upside down, upside-down, upstage, upstairs, upstanding, upstart, upstream, upsurge, upswing, uptake, uptight, uptown, upturn, upturned, upward, upward (also upwards / -wEdz; -wLdz/), upward mobility, upward(s), upwards, upwards of, uranium, urban, urbane, urbanely, urbanity, urbanization, urbanisation, urbanize, urbanize, urbanise, urchin, Urdu, urea, ureter, urethra, urge, urge sb to do, urge sb. on, urged, urgency, urgent, urgently,