《华盛顿邮报》报道，专家说，主要原因之一是，农民对马利筋植物使用除草剂，而这些蝴蝶以马利筋植物为食。

The Washington Post reported, one of the main reasons, experts say, is that farmers have used herbicides on the milkweed plants that these butterflies feed on.

youdao

将高筋面粉、 低筋面粉和糖混合放入一个大碗中。

Mix strong flour, plain flour and sugar in a large mixing bowl.

youdao

画布上一强筋的笔触引起了我的注意，好像是一些很难辩认笔迹或字母。

But it is the gritty crayon strokes that captured my attention, as if they were some illegible script, or alphabet.

youdao