at the grape harvest; 在葡萄收获季节
It rained during the harvest. 收获期间下雨了。
a most rewarding visit; 一次很有收获的访问。
Her efforts have been fruitfull.; Her efforts have yielded good results. 她的努力很有收获。
牛津高阶第八版
美国韦氏词典
Dictionary.com
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维基百科 (自由的百科全书)