常见例句雙語例句If the easterly is decreased with the height, so in the vertical shear of basic air flow is westerly one the bad weather is observed to the east of the trough lines.若東風隨高度減弱的地區，基本氣流的垂直切變爲西風，則壞天氣區在槽線以東。 返回 easterly trough