Yet, Darwin theorized in a world much different from the one we know. That is why scientists today wonder at the depth of his knowledge and the strength of his arguments.

尽管如此，达尔文的理论与我们所知道的世界上任何一种理论都不一样，这也正是为什么至今科学家们仍然对他探求知识的途径和他理论的力量感到惊讶。

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No setbacks, will never know how much his own strength.

没有遇到挫折，永远不会懂得自己的力量有多大。

youdao

The bowman is dependent for real efficiency on his bodily strength much more than the arquebusier.

与火绳枪手相比，弓箭手依赖的是自身体能。

youdao

But his lower body, especially his feet, did not gain much strength to hold his large frame.

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Youssif is now standing tall, thanks to the strength of his parents who risked so much to move to the United States.

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In the meantime, the country's weak president is now free to criticise his counterparts for misusing so much of their strength.

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