解释：在中药中，以草本植物为主的药材占据重要地位，体现了草本植物的药用价值。

I'm not a conversation, I'm a harmony.

The poor are not irrational; they are just as rational as anyone else, but they operate under very different constraints.

最终，是故事在我们之后存活下来。

If you do what you've always done, you'll get what you've always gotten.

The essence of causal inference is to go beyond the data and ask what would happen if we intervene.

可持续性不是一种选择；它是我们行业未来的必然要求。