1、 The toughness, lightness, strength, and elasticity of whalebone gave it a wide variety of uses.
鲸须的坚韧、轻巧、结实而又有弹性赋予它广泛的用途。
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2、 According to the public, at least, it's not that they lack toughness, management talent or proper skill sets.
至少在公众看来，这并不是因为他们缺乏韧性、管理才能或是与之匹配的技能。
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