he looks very sad.
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he looks very sad
他看起来很伤心
以上为机器翻译结果，长、整句建议使用 人工翻译 。
He looks very sad. Because he was tired.
他看起来非常悲伤，因为他非常的累。
youdao
He must have failed at the interview, for he looks very sad.
他面试肯定失败了，因为他显得很伤心。
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