For long hours he flew, listening only to the sound of his engine.

在经过长时间的飞行，他只能听到发动机的声音。

youdao

It's been two days. My laptop has gone to sleep a few times, so we haven't actually run for 48 hours (although the engine thinks it has been up all that time).

在两天中，我的笔记本电脑休眠了多次，因此并没有真正运行48小时(虽然引擎认为它一直在运行)。

youdao

In theory, the airbreathing engine could propel an airplane to speeds of Mach 7 or faster, enabling aroundtheworld flights that would take several hours.

从理论上讲，这种喷气引擎可以将飞机速度推进到7马赫甚至更快，使飞机能在数小时内完成环球飞行。

youdao

After thirty-six hours, Brown was captured in the building that served as the fire engine and guard house.

VOA: special.2009.11.06

But the crew avoided capture by hiding in places like the engine room for many tense hours.

VOA: special.2009.05.27

For long hours he flew, listening only to the sound of his engine.

VOA: special.2009.03.18

Every night, it shuts down its engine for eight hours to recharge its batteries with its nuclear generator.

NEWYORKER: The Martian Chroniclers

Heavily automated, it can build a four-cylinder engine in less than the 1.82 worker hours it takes at Toyota's best engine factory in West Virginia.

FORBES: Magazine Article

The fire broke out in the aft engine room and took several hours to extinguish.

CNN: Spate of fires poses problems for cruise industry