I didn 't know you worked here .

我不知道你在这儿工作。

The earth worked differently in the two periods .

在这两个时期间，地球的运作方式有所不同。

This system has never worked particularly well in china .

这一体系在中国从未特别有效地运转。

I worked for 29 years .

我在这里工作了29年。

She 'd worked her entire life .

她一辈子都在工作。