Muscling in on another creature's kill is not for the faint-hearted.

强取其它生物的猎物绝不是弱者所为。

Banks are muscling in on the insurance business.

【muscle】银行在插手保险生意。

And what gives you the confidence to believe that the incumbents aren't going to just muscle in on this new world, and it really is going to be the insurgents that win?

是什么让您有信心相信现任者不会只是强行进入这个新世界，而真正获胜的将是叛乱分子？