When the well reaches a pool, oil usually rises up the well because of its density difference with water beneath it or because of the pressure of expanding gas trapped above it.

当井和一个水池相接时，油通常会从井里上升，因为它与井下的水的密度不同，或者因为停留在它上方的膨胀气体的压力。

youdao

He should be well positioned to explore my problem in the abstract and, unlike my friends, to avoid getting trapped in the inadequacies of my examples.

他应该会以抽象的方法探讨我提出的问题，而不会像我的朋友们那样陷入我举出的不恰当的例子里面去的。

youdao

It was a warm and well-appointed place to be trapped. But I was still trapped.

那里是一个既温暖又设施齐全的陷阱，但我还是陷进去了。

youdao

He planned to feed them fake or booby-trapped data via well-known radio communication systems.

BBC: Hacker targets flight deck computer systems

In considering the well-trapped and slick greens of Winged Foot, Casper took the opposite approach on the 215-yard par-three third hole.

WSJ: Billy Casper, Standing in the Shadow of Legends | Golf Journal

The speaker may well find himself trapped in a legislative impasse between conservative and pro-reform members, even though the reformers might have won a majority of the 270 seats in the parliament.

ECONOMIST: Iran