But the pipe has one major detractor: It's something of a black box.

但是，管道有个大缺点：它像是黑箱子。

youdao

Probably the biggest detractor from getting up early is not getting enough sleep.

睡眠不足可能是早起最大的障碍。

youdao

Probably the biggest detractor from getting up early is not getting enough sleep.

睡眠不足可能是早起最大的障碍。

youdao