It only takes a second to add an additional comment line for each 3 lines of code.

给三行代码加一行注释，只需要你几秒时间。

youdao

It takes only a second to destroy a civilization, but it takes centuries to create it.

现在毁灭一个文明我们只需要一秒钟，可是创造文明我们需要好几个世纪。

youdao

It only takes one cartridge of improper caliber or gauge to wreck your gun, and only a second to check each one as you load it.

在装填时要认真检查每一发枪弹，哪怕只有一发枪弹口径或规格错误也会毁坏你的枪。

youdao

"It is only half a job done, but it only takes a second to score a goal, anything can happen, " skipper Steve Morison told BBC Three Counties Radio.

BBC: Stevenage focused on play-off win

Building a reputation of integrity takes years, but it takes only a second to lose, so never allow yourself to ever do anything that would damage your integrity.

FORBES: Success Will Come and Go, But Integrity is Forever