?? 詞語組成解析
genus
['d?i:n?s]
n. （動植物的）屬;類;種;型;
??? 情景例句
Do you want to sit by the window?
想靠窗坐嗎？
I didn't know whether to send the letter airmail or not.
我不知道是否送航空郵件。
Fortunately, however, ancient men made tools of stone, especially flint,
然而， 幸運的是，遠古人用石頭制作了工具，特別是用燧石，