All codes are optional.

所有的代码都是可选的。

youdao

As a part of quality checking the site, the designer needs to ensure that all codes created for the site are validated.

作为网站质检的一部分，设计师要确保创立的所有的编码都是有效的。

youdao

The processor does not recognize a negative number from the converter and assumes that all codes from the 12-bit, bipolar-in ADC are positive.

处理器不能从转换器识别出负数，所有来自12位的双极性adc数据都是正的。

youdao

"So those codes are all there. We see them all over our city.

VOA: standard.2010.07.27

He times the ball beautifully, and really should be scoring runs regularly for England in all codes of the game.

BBC: Jonathan Agnew column

The club will be excluded from all competitions, above, but not including, minor (under 18) level in all codes for one year.

BBC: St Mary's Rasharkin GAC violence 'worst seen in 25 years'

All sporting codes have expressed shock at the findings as they pledged full co-operation with ASADA and other investigating authorities.

CNN: Shock as organized crime muscles into Australian sport