问候不一定要慎重其事，但一定要真诚感人。

The regards shouldn’t be so careful but it must be sincerely to be moved.

至少在最近二十年以来，我一直听道你慎重其事地提到它们。

I have heard you mention them with consideration these twenty years at least.

然而，参众两院都就这个案子慎重其事投了票，而且两院都通过了！

However, the House and Senate are on the case and voted to proceed with caution, but both houses have passed!