tireless /'taiәlis/ ★☆☆☆☆ 📖 中文释义 a. 不疲倦的, 不厌倦的, 不屈不挠的 📘 English Definition(英文释义) s showing sustained enthusiastic action with unflagging vitalitys characterized by hard work and perseverance ← tirel T 字母词表 tirelessly →