### Chinese: 显色反应和细菌残留实验证明：通过这种方法洗手的效果，和普通的洗手方法是一样的。
### English: According to the chromogenic reaction and the <v>germ residue</v> experiment result: the effect of hand washing in this way is the same as that of the ordinary method.
### Errors: There is a major terminology/inappropriate for context error at "germ residue" within <v></v>.

### Improved English: Chromogenic reaction and germ residue experiment results prove that the effect of hand washing this way is the same as that of the ordinary method.
