Laurie, though decidedly amazed, behaved with great presence of mind.

劳里虽然大吃一惊，却表现得非常镇静。

" Oh, really, I beg pardon. It's an uncommonly fine one, isn't it? " said Tudor, with great presence of mind, and an air of sober interest that did credit to his breeding.

“噢，原来如此，真对不起。这一只实在好得异乎寻常，可不是吗？”“都铎”镇静自若地说，一副怀有兴趣但保持克制的样子，显得很有教养。