Keep it straight and jagged with sharp edges.

保持笔直的锋利的锯齿。

youdao

Just keep going in a straight line ; you can't miss it.

照直走，你不会找不到那地方的。

《牛津词典》

Just now, it is a struggle to keep a straight face when you read the words "talent" and "Wall Street" in the same sentence.

刚才，当你在同一个句子里读到“人才”和“华尔街”这些词的时候，会努力控制自己不要笑出声来。

youdao

Because if we can keep the alignment straight then the seals work fine. It's between the mating and de-mating that we get the misalignment problem,".

VOA: standard.2009.06.16

Using a series of sensors, cameras and servos the car is able to turn the steering wheel plus activate the throttle and the shifter to navigate across this stretch of road, relying on the road markings painted on the floor to both keep it driving in a straight line and to have it stop, respectfully, at the crosswalk.

ENGADGET: Nissan NSC-2015 self-driving car with LTE and smartphone connectivity (test-ride with video)

It needs its Central Bank to keep it on the straight and narrow.

ECONOMIST: Is the Central Bank targeting growth?

Can you keep it up for seven days straight, starting as soon as you wake up?

FORBES: 5 Steps Entrepreneurs Should Take To Get More Done