Question

altostratus
al.to.stra.tus  AHD[²l”t½-str³“t…s, -str²t“…s]   DJ[7#lt*&6stre!t*s, -6str#t*s]  KK[7#lto6stret*s, -6str#t*s]
n.（名词）
    An extended cloud formation of bluish or gray sheets or layers.
    高层云：浅蓝色或灰色的片状或层状延伸的云层结构
ORIGIN
1.Latinaltus [high] * see  al-²
    拉丁语altus [高的] *参见 al-²
2.stratus
    stratus