桑塔卢西亚
It's been a while since I came back to Beijing.I have been back in Beijing for a while.
烧饼小顺顺
如果这两个是一句话的话,就是i would try my best to work while being back beijing.里面的try my best也可以用do my best。如果这个句子分成两句的话,就不能用这种有关联的结构。1.when i come back beijing2.i will try my best to perform my duty.
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