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鸭梨山大痕
over a long period of time;long- term
一只自由鱼儿
长期有效？IT WILL BE VALID FOR A LONG TIME.
品嵊红木
over a long period of time长期；年深月久双语例句：The inscription of the monument has worn away over a long period of time. 年深月久，碑文已经磨灭了。
二月的小桃子
for long time .
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