Trunnion bascule bridges are doubtless one of the renowned bridge types in Chicago.

耳轴开合桥是芝加哥最出名的桥的种类之一。

youdao

"Isadora's page is the first to deal with so many different topics, in such a far away place, and is, doubtless, the one which attracted the most attention yet".

BBC: Scotland

Doubtless Gazprom could come up with one or two ideas if pushed.

ECONOMIST: Gazprom

He dated flashy women, one after another, whom he doubtless thought seemed other people.

FORBES: Weinergate: Some Parting Thoughts