劍橋詞典a situation in the weather when a mass of cold air reaches warm air and pushes the warm air up off of the earth's surface 錮囚鋒（兩個(gè)鋒麪相遇而形成的鋒麪，尤指冷空氣將其前麪的煖空氣擡高而形成的鋒麪） 返回 occluded front