短語詞組短語mulberry y field 桑園senescent mulberry field 衰老桑園area of mulberry field 桑園麪積high productive mulberry field 高産桑園establishment of mulberry field 桑園建成early yield mulberry field 速成桑園completed mulberry field 成林桑園newly planted mulberry field 新植桑園intercroped mulberry field 桑園間作 返回 mulberry field