例句:Investment is a function of the interest rate.
投资随着利率的变化而变。
2.start to 开始
例句:The cells will promptly start to soak up moisture.
细胞会立即开始吸收水分。
3.allow to 允许
例句:Add a little of the warmed milk and allow to froth a little.
加一点温牛奶，并让它起点儿沫。
4.keep up with 追上,赶上
例句:Like many other developers, he is self-taught and relies on online resources to keep up with technological developments.
和许多开发人员一样，他自学成才，依靠网络资源紧跟技术发展的步伐。
