秦皇岛国际徒步大会始于2005年，每年举办一届。
Qinhuangdao International Walking Festival. It has been engined since 2005, which is held once a year.
自1957年举办第一届以来，每年广交会都会在广州举行，春季一场，秋季一场。
The Canton fair is a trade fair that has been held in spring and autumn seasons each year since 1957 in Guangzhou.
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。
Since China began its preparation work for Shanghai 2010, the organizers have maintained their commitment to organize a yearly forum in cooperation with the BIE.
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