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as there was no traffic
比预期时间早“  detail>>
no traffic
没有交通  detail>>
traffic
 n.  1.交通,(人、车、船、飞机的)来往;交通量;运输;运输量;运输业;旅客,货物。 2.交易,贸易 (in); 交往;交流。 3.电信(业务)...  detail>>
or switch
或开关  detail>>