农活都是因地制宜，很难有统一标准，更别说学美国了。

来源: 方外居士于 2025-04-21 10:05:08 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.