Because I want to change my working environment and seek new challenges. B.

因为我想换一下工作环境，迎接新的挑战。

youdao

B: Because I want to change my working environment and seek new challenges.

因为我想换一下工作环境，迎接新的挑战。

youdao

We believe this plan does not adequately consider the challenges to U.S. security that may arise in the next century, and the central role that the B-2 may play in meeting those challenges.

CENTERFORSECURITYPOLICY: Letter to the President

One of the biggest challenges was writing software to integrate ADS-B with an older, less sophisticated collision-avoidance system.

FORBES: Technology

Just as a virus that affects humans can mutate and confound medical experts, each version of Sasser -- labeled A, B, C, and D -- poses slightly different challenges for information technology experts.

CNN: Sasser worm rips through Internet