With their long legs and ground-eating stride, they can travel tirelessly for hours on end with no energy wasted.

通过它们的长腿和阔步，它们能够不知疲倦的走几个小时也感觉不到能量的消耗。

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The society said trustee directors had "worked tirelessly" since the end of the last festival to explore all other options before making the decision.

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Whereas his companion remained completely immobile for hours on end, he never ceased circling her, tirelessly filming her.

NEWYORKER: While the Women Are Sleeping

When the Qaddafi regime came to an end, Chris was there to serve as our ambassador to the new Libya, and he worked tirelessly to support this young democracy, and I think both Secretary Clinton and I relied deeply on his knowledge of the situation on the ground there.

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