preparation work短语¹³¹⁶²⁰⁺³ 基本例句 准备工作 Since China began its preparation work for Shanghai2010, the organizers have maintained their commitment to organize a yearly forum in cooperation with the BIE. 自中国开始为上海世博准备以来,组织者一直履行着自己的承诺:每年都要和国际展览局一起举办一届这样的论坛。 putclub