?? 詞語組成解析
genus
['d?i:n?s]
n. （動植物的）屬;類;種;型;
??? 情景例句
What line of work are you in?
你做哪一行的？
To beat
毆打，打擊
Some really keen enthusiasts go so far as to build their own computers.
有些熱衷于自己動手的人甚至自己組裝電腦。