he smiled knowingly
他会意地笑了
以上为机器翻译结果，长、整句建议使用 人工翻译 。
He smiled knowingly.
他会意地笑了。
《柯林斯英汉双解大词典》
And he smiled knowingly.
他会意地微笑着。
youdao
He smiled knowingly, and went back to his book.
他心照不宣地笑笑，然后又返回到他的书上。
He knew for certain that her purpose had not been to harm the tiger, that she had smiled knowingly at him when it became obvious that the tiger had escaped.
NEWYORKER: The Tiger��s Wife
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