The market situation is difficult to evaluate.

市场形势难以评估。

He encouraged delegates to evaluate treatment efforts not only based on the number of patients, but on the quality of treatment outcomes as well.

他敦促代表们在评估治疗效果时不仅要依据患者数量，而且要以治疗结果的质量为基础。

We need to evaluate how well the policy is working.

我们需要对这一政策产生的效果作出评价。

We need to evaluate its antioxidant capacity by TLC-bioautography.

我们需要通过 TLC 生物自显影技术评估其抗氧化能力。

The aim is to evaluate mice as experimental animals for Chlamydia pneumoniae infection.

目的是评价小鼠肺炎衣原体感染的实验效果。