Without oil, its navy could not leave port, its aircraft could not fly.

没有石油，海军无法离开港口，飞机也不能飞。

youdao

Oil also allows cool water to get past the birds' wet suit-like feathers and touch skin, compromising the pelicans' thermal regulation and making it harder for them to fly and dive for fish.

同时，油污还会使冰冷的海水直接穿透鹈鹕紧身衣似的羽毛层，与皮肤相接触，危及它们的热调节系统，让它们很难飞起来，也无法潜入水中捕鱼。

youdao

Another small frustration. Sometimes, as I ran with an empty bathtub to catch a dough emission about to fly out of the mixer, I slipped on a little bit of oil on the floor.

有时候，我又推着空浴缸去扑即将飞出的面团，或者因为地板上的油渍而摔跤，幸好，这些都是小事故。

youdao

For travellers who drive more than fly, lower oil prices should also help keep trip costs in check.

BBC: Business travel outlook for autumn

He said the government was ready to bus or fly foreign workers to oil and gas installations around the country.

WSJ: Mixed Mood in Libyan Capital

Anything less than that and the company may be putting itself at significant risk should oil prices really fly.

FORBES: Magazine Article