Is that why you never dress down?

蒂埃里：这就是你从不穿便装的原因吗？

The invitation said casual, so I'm dressing casually: jeans and a T-shirt. What's wrong with that?

邀请函上写的穿便装，我穿的很随意啊，牛仔裤加T恤，没毛病啊。

Here she now spread out and fastened a plain dark walking-dress and a few other trifles of apparel.

她现在在这里展开并系好件朴素的色便装和其他几件零碎的衣服。

She likes the fact that she can wear her comfortable informal clothes and have her cat sitting on her lap.

她（在）可以穿着自己舒服的便装，并让她的猫坐在自己的腿上。她很喜欢这点。

" Come, come" ! said Nekhludoff, rising, and wondering why the deacon's daughter should want him, assumed a grave expression and went to the woodsman's hut.

“来来” ！聂赫留朵夫说着站了起来， 不明白执事的女儿为什么要找他， 便装出副严肃的表情， 朝樵夫的小屋走去。

So, we'd get usually one outfit — I'm thinking of the spring and the summer — to wear to the school picnic or the Dress Down Day, they called it.

所以，我们通常会买套衣服——我想的是春天和夏天的衣服——穿去参加学校野餐或他们所说的“便装日”。