attest造句

I can personally attest that the cold and flu season is here.
感冒和流感季节来了,对此我有切身体会。

Contemporary accounts attest to his courage and determination.
当时的报道证实了他的勇气和决心。

I can attest to the absolute truth of his statement.
我可以证实他的话是千真万确的.

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