Many rules of grammar are a matter of choice, but your choice should be internally consistent within the letter.

有好多文法规则可以供选择，原则是应在信函的全文中保持文法的一致性。

youdao

I chose 256mb on my system, but your choice may vary depending on what kind of free memory you have on your computer.

我选择256 MB，但是你可以根据你电脑有多少空闲内存而变化。

youdao

It's also your choice if you want to go out at night, but you will be foolish to let that affect class performance during the day.

如果你想在晚上出门，这也是你的选择，但影响到白天的课堂表现会是很愚蠢的。

youdao

But now, you see there are a lot of possibilities and the outcome of your portfolio choice can be anything along this line.

但是现在你可以看到很多可能的投资组合,你决定的投资组合的结果,可以是这条线上任意一点。

耶鲁公开课 - 金融市场课程节选

But in general, the choice of variable name is a great way of commenting your code.

但是通常来说，变量名称的选择,是评论你的代码的,一个重要方式。

麻省理工公开课 - 计算机科学及编程导论课程节选

The vice-presidential candidate himself might not actually do anything for you electorally, but your choice of him is a big deal and sends a very important message.

NPR: Speculation Builds On McCain's, Obama's VP Picks

The company's USB 2.0 HyperDrive SPACE may look like your average Korean-bound DAP at first glance, but actually houses your choice of 2.5-inch hard drive, and can automatically transfer pictures or media from a smorgasbord of flash memory directly onto the HDD to keep your card ready for more.

ENGADGET: SavitMicro HyperDrive SPACE 2.5-inch HDD enclosure backs up flash cards

Hey, this is New Hampshire on the line, so live free or die but this is also Timberland, Stratham NH 03855, make your own choice about smoking, but not at work.

FORBES: Timberland's Smoking Ban: Good Corporate Citizenship Or Overkill?