pose challenges TEF/TCF常用TEF/TCF专四

参考翻译

• 提出挑战

Both absolute and functional iron deficiencies pose challenges for the correction of renal anemia.Both absolute and functional iron deficiencies pose challenges for the correction of renal anemia.

绝对和功能性铁缺乏向矫正肾贫血提出了挑战。

Biofuels offer huge potential, but pose challenges best countered with strong and coherent developmeBiofuels offer huge potential, but pose challenges best countered with strong and coherent developme

Arungu-Olende写道，生物燃料提供了巨大的潜力，但是也造成了挑战，应对挑战的最佳方法是强有力和连贯的发展政策。