"challenge up" is not a correct phrase in written English.
However, you can use the phrase "rise to the challenge." For example, "I'm prepared to rise to the challenge and take on this difficult task."
It included a system in which each team could challenge up to two calls.
The union has been given the right to challenge up to 13 percent of ineffective ratings in cases where harassment and unfairness are suspected.
The now-widely-known goal was to get people to dump a bucket of ice water over their heads, record it, and challenge up to three of their friends to do the same to raise awareness.
He suggested that a manager or coach could be allowed to challenge up to two refereeing decisions in a game.
It's two big players going for the ball with their feet up, nothing more". Is that the Aberdeen title challenge up in smoke?
Murray uses his last challenge up too.
The E. coli challenge up-regulated the expression of tumor necrosis factor (TNF -α, inTNF -αkinterleukin toll-lIL -1αceptor (TLR)2 and TLR4 (P < 0.01, P = 0.01, P = 0.03, P = 0.01, respectIL -1α, and EOXB supplementation down-regulated the expreceptorof TLR 2 (P < 0.01) and IL-6 (P = 0.046) compared TLR4he EO grouP.
Gels were applied daily for 2 weeks, and animals were challenged up to 24 h after the last application.
We completed a marathon viewing of 145 Ice Bucket Challenges up to 13 September 2014.
However, prediction of the clinical behavior and optimized treatment regimen for BC are challenging up to this day.
To determine if Aspergillus antigen challenge up-regulates periostin protein expression in the lung, we evaluated periostin protein expression by immunoblot of whole lung homogenates and by immunohistochemistry on whole lung sections from periostin deficient mice and wild-type 129 C57BL/6 controls (F3).
