?? 詞語組成解析
genus
['d?i:n?s]
n. （動植物的）屬;類;種;型;
??? 情景例句
Has a poor personal appearance.
衣著形象不佳。
In college I majored in economics, What was you major?
大學時我主修經濟，你主修什么呢？
a trough (the lowest point), a height (the vertical distance from the trough to the crest),
波谷（最低點）、浪高（從波谷到浪峰的垂直距離）