[译] 过度劳累可能影响健康。
[误] Overfatigue is able to affect health.

[正] Overfatigue is capable of affecting health.
[注] be able to 与 be capable of 意思接近 can，表示有能力做某事，可以交替使用，如：Computers are capable of doing extremely complicated work in all branches of learning. Computers are able to do extremely complicated work in all branches of learning. 计算机能够做各学科复杂的工作。/ This type of bearing is capable of supporting thrust loads. 这类轴承能够支承止推负荷。但作"有……倾向（常指坏事）"解时，须用 be capable of，如：He's capable of any crime. 他可能犯罪。/ Violence is capable of causing fracture. 暴力能引起骨折。