Keep the barbecue pit on a flat surface in an open area. Be sure your outdoor fire extinguisher is close to your barbecue pit.

所以请在一个宽阔的平地上做烧烤，并确保周围有灭火器。

youdao

Engineers designing the world's fastest car believe they now have a solution to keep the vehicle flat on the ground.

世界上最快的汽车的设计工程师确信他们已经找到使车辆与地面持平的解决方法。

youdao

It's because of appliance and efficiency standards that we've been able to keep our energy usage relatively flat, and considering California is on average a warmer state, that's pretty amazing.

FORBES: Obama's High-Tech Energy Pick

In most cases, the companies are compensated by the colleges, either with a flat fee or a rate based on the number of students they put into a program that helps keep them from defaulting.

WSJ: Weighing Merits of Loan Deferments Today to Keep Defaults Away