the Downs多恩斯(英国英格兰东南部白垩质丘陵,分为北多恩斯和南多恩斯)theart.那；这；这些；那些adv.（用于比较级前）更加；用于最高级前；(用于形容词、副词比较级前)越 ... 越 ...The Positive Periodic Solution正周期解The internal structure of word单词The campsite is right ahead.前边就是宿营地。the warrior Lodges of Davin.达文上的战士小屋入教。the information of inscription碑刻资料the work-integrated learning工学结合The Mogao Grottoes in Dunhuang敦煌莫高窟thermocompression ball bonding热压球焊the content of reduction sugar还原糖含量the first backcross generation回交一代