engine是什么意思？

But steamships didn't lose their sails until the 1880s, because early marine engines had a nasty habit of breaking down.

Until ships became large enough (and engines small enough) to mount two engines side by side, they needed to keep sails.

It's clear that petrol-driven engines have no future.

His main thesis is that the buzz of urban life, and the opportunities it offers for co-operation and collaboration, is what attracts people to the city, which in turn makes cities into the engines of art, commerce, science and progress.

Google's core business is search and find, so obviously what helps improve Google's search engine is good for Google," he says.

make full use of the power of its search engine