He is a man of untiring industry.
他是位孜孜不倦努力不懈的人。
As soon as the lights were out, these untiring nibblers set to work.
灯火一熄，这些不知疲倦的爱咬东西的家伙就开始闹将起来。
Untiring ability to work and cover rough terrain for long periods of time.
具有不知疲倦的、在崎岖的地形下长时间工作的能力。
Untiring ability to work and cover rough terrain for long periods of time.
具有不知疲倦的、在崎岖的地形下长时间工作的能力。
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