This chap looks really fierce.

这个人样子真凶。

《新英汉大辞典》

The competition is really fierce among TV programs in a diversity media market.

在媒体市场日趋多元化的今天，形态各异的电视节目竞争激烈。

youdao

I heard that the competition was really fierce but I knew that nothing was too difficult for you.

我听说竞争真的很激烈，但我知道对你来说没有难事。

youdao

He was really fierce.

BBC: Malcolm Webster

Mr. JIM HALL (AutoPacific Inc.): The competition in the market really is absolutely fierce.

NPR: Auto Watchers Underwhelmed by U.S. Designs

He courageously pursues the instincts of his imagination, whatever the cost may be and in this case the cost is high, since a tale stretching over thirty years needs a fierce narrative push that he cannot really muster.

NEWYORKER: Map of the Human Heart