To put different young kangaroos at various stages of development is advantageous for the female kangaroo to handle them at the same time.

让不同的幼袋鼠处于不同的发展阶段，有利于母袋鼠同时照顾它们。

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Incorporating potassium dichromate and alcohol into the aniline at various stages of the experimental process, he finally produced a deep purple solution.

在实验过程的不同阶段，他将重铬酸钾和酒精加入苯胺中，最终得到了深紫色的溶液。

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You can test widgets at various stages of the development process.

可以在开发过程的不同阶段测试widget。

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He played third base, first base and the outfield at various stages of his career.

WSJ: Why the New York Mets Still Owe Bobby Bonilla Nearly $30 Million

People at various stages of their professional lives are taking a long hard look at federal jobs.

CNN: Obama administration job-seekers face tough odds

But there are a number of bills hanging around Congress, at various stages of maturity, to control greenhouse-gas emissions.

ECONOMIST: Climate change