Depending on the wind, you may have to walk or run forward to achieve proper slack.
根据不同的风力,你可能还需要向前走或者向前跑以达到适当松线的目的。
Wind speed changes from time to time, depending on the time of day, weather and location.
风速随时间、天气和地点而变化。
Radiation-emitting particles can then travel afar, depending on the speed and direction of the prevailing wind.
放射性微粒形成之后,可以飘到很远的地方,具体多远就看主风的速度和方向。
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