所属栏目：外贸英语用法
advkeep [be] ～of [with]保持与……并列,与……保持一致We have to adjust our prices constantly in order to keep ～of the movements of the world market. 为与世界市场的动态保持一致,我们必须经常调整价格。 ......（本文共 138 字 ） [阅读本文] >>
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