We gotta have our big guys step up to the challenge.

We are excited that Boeing has taken on this challenge.

big challenge, a heck of a mountain to climb.

I accepted the challenge that the Chinese market was not going to be wide open, and I knew the telecom industry was a monopoly, but I believed that I understood the system and background of China better than other overseas investors,

We're certainly going to challenge the charges in court.

In the meantime, these results present a challenge to policy makers.