He needs reading glasses.

他需要老花眼镜。

He put on his reading glasses.

他戴上了他阅读时戴的眼镜。

I have to admit that I wear reading glasses.

我必须承认，我戴老花镜。

Where the devil did I put my reading glasses?

我到底把看书时用的眼镜放到哪里去了？

My grandpa always misplaced his reading glasses.

我爷爷老是找不到他的老花眼镜。