Warning: file_put_contents(): Only 0 of 5289 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/73904.com/index.php on line 55 spring silkworm rearing season例句_spring silkworm rearing season英汉例句_spring silkworm rearing season双解例句_骑士汉英词典
Rearing silkworm twice in the spring season was a new trial which could save labour cost so as to suit for the present situation. 饲养二春蚕就是适应这一形势需要而形成的省力化、经济化养蚕新技术。