The officer roared out a command and all the soldiers stood to attention.
军官大吼一声发出了口令,士兵们全体立正.
《简明英汉词典》
These command attention for both theoretical and policy scientific reasons.
关注这些干预,有理论和政策科学的理由.
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为此,一些少有人知的原材料,如铽、钐和钌,已开始引起高度关注。而以往,只有能源和粮食安全曾受到这种程度的关注。
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