At the same time, he insisted, no nation, however powerful, could hope to tackle today's increasingly global threats and challenges alone.
同时，他坚称，不论这个国家多么强有力，没有国家有望单独处理今日持续增长的全球威胁与挑战。
It is, however, powerful enough to set electrons vibrating-particularly those electrons already floating free inside a metallic crystal lattice.
不过，它的能量足以引发电子产生振动—特别是那些金属晶格内的自由漂浮电子。
It is, however, powerful enough to set electrons vibrating-particularly those electrons already floating free inside a metallic crystal lattice.
不过，它的能量足以引发电子产生振动—特别是那些金属晶格内的自由漂浮电子。
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