Mesotrophic
a. [地]( 水體) 中滋育的, 中營養(yǎng)的
??? 情景例句
That's a good buy.
那買得便宜。
He reads a book every day.
他每天都讀一本書。
There are eighteen floors in the building, and he lives on the fifteenth floor.
這幢大樓有18層。他住在第15層。