by stages造句

1、A descent by stages or steps.
递减，下降一种逐级或逐步的递减，下降

2、A descent by stages or steps
递减，下降一种逐级或逐步的递减，下降

3、We must proceed by stages from the simple to the complex.
我们必须经历由简单到复杂的阶段。

4、The access road to the dam was arranged by stages and layers.
上坝施工道路分期、分层布置；

by stages翻译