The path steepens as you climb the hillside.

沿着山坡往上爬时，那条小径越来越陡。

In particular, as the yield curve steepens , the commodity bubble can burst. The stock market will probably come down last.

尤其当收益曲线趋于陡直，初级产品泡沫就可能破裂，股市下跌可能最后发生。

More parameterization would be required, because the token type must be user-defined. Additional parameterization steepens the learning curver and overcomplicates a simple interface.

需要更多的参数，因为标记的类型必须是用户定义的。额外的参数使学习曲线变得陡峭，使简单的接口过度复杂。