They may include the obvious, such as lack of climbing power, poor pedaling mechanics or general lack of endurance.

他们可以是显而易见的，如缺乏攀爬力量，不讲究踏板技巧或总体缺乏耐力。

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The brave men,living and dead, who struggled here, have consecrated it, far above our poor power to add or detract.

VOA: special.2009.11.12

The brave men,living and dead,who struggled here,have consecrated it, far above our poor power to add or detract.

VOA: special.2009.02.06

He not only showed humanity how to get more food from the Earth, he proved that farming has the power to lift up the lives of the poor."

VOA: special.2009.11.10

This immunity from the slings-and-arrows of poor power quality in the residential sector is unlikely to last long.

FORBES: Perfect Power: Clean Energy's Killer App

The Air Accidents Investigation Branch (AAIB) said the aircraft, by modern standards, had "low stability and power margins and poor flight instrumentation".

BBC: Old Warden aerodrome fatal crash

Once we stop concentrating dirty, legacy power sources in poor communities, our public health costs will drop and the quality of life for millions will improve.

CNN: Commentary: Green way to create jobs, save cities