It is the single largest source of federal revenue to states.
它是国家联邦财政收入的第一来源。
Both single and double stable limit cycle flutter states are found.
风洞吹风中测出了单稳定极限环、双稳定极限环颤振的情况。
You need these skills in every single subject you will take in the United States.
你在美国学习的所有科目都需要这些技能。
You need these skills in every single subject you will take in the United States.
你在美国学习的所有科目都需要这些技能。
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