谢妹妹!

检讨一下:

 

- 用混了 biennial (两年一次) and biannual (一年两次).

 - make g profits - typo, should be "make profits"

- several tens of - 好像有这种用法

Corrected version: 

 

 

As the biennial Frankfort Auto Show opens its door to the public on Tuesday, its focus of attention will be on the strong ability of German auto industry to make profits and announcement of tens of new brand cars.

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