Margin of cultivation
[經] 耕作限度
?? 詞語組成解析
margin
['mɑrd??n]
n. 邊緣，范圍;極限;利潤，盈余;（版心外）的空白;
vt. 留邊;成為…的邊;加邊于，圍繞;為…加旁注;
of
[?v]
prep. 關于;屬于…的;由…制成;
aux. 助動詞 [非標準用語、方言] =have [主用于虛擬語氣];
cultivation
[?k?lti'vei??n]
n. 教養;栽培;耕作;（關系的）培植;
??? 情景例句
Is something bothering you?
有什么事煩你嗎？
Do you usually play baseball on the weekend?
你通常在周末打棒球嗎？
Where were we?
我們說到哪兒了？