You use generic to describe something that refers or relates to a whole class of similar things.
例句
Parmesan is a generic term used to describe a family of hard Italian cheeses.帕爾瑪干酪是意大利硬奶酪的通稱。
ADJ
無注冊商標的；非專利的
A generic drug or other product is one that does not have a trademark and that is known by a general name, rather than the manufacturer's name.
例句
They encourage doctors to prescribe cheaper generic drugs instead of more expensive brand names.他們鼓勵醫生給患者開較便宜的非專利藥，而不是價格更高的品牌藥。
ADJ
尋常的；一般的；普通的
People sometimes use generic to refer to something that is exactly typical of the kind of thing mentioned, and that has no special or unusual characteristics.
例句
...generic California apartments, the kind that have white walls and white drapes and were built five years ago.5年前建造的有著白色墻壁和白色窗簾的普通加州公寓