?? 詞語組成解析
genus
['d?i:n?s]
n. （動植物的）屬;類;種;型;
??? 情景例句
Sunday. Why?
星期天。為什么問這個？
Nothing for nothing.
不費力氣，一無所得。
However, they have decided to use the post office.
然而她們還是決定利用郵局。