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She hid her worries behind an air of insouciance.
她掩饰着自己的烦恼，表现得无忧无虑。
《牛津词典》
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Seeing it is hid from the eyes of all living, and kept close from the fowls of the air.
是向一切有生命的眼目隐藏，向空中的飞鸟掩蔽。
youdao
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Seeing it is hid from the eyes of all living, and kept close from the fowls of the air.
是向一切有生命的眼目隐藏，向空中的飞鸟掩蔽。
youdao