沉浮

tōng guò jiāng bù tóng cái liào chén fú zài shuǐ zhōng bǐ jiào fā xiàn cái liào de bù tóng wù lǐ tè xìng

通过将不同材料沉浮在水中，比较发现材料的不同物理特性。

By floating different materials in water, different physical properties are found.

yǔ shì chén fú

与世沉浮

go with the general flow

jiào xué fān yì fǎ zài guó wài wài yǔ jiào xué jiè de dì wèi jǐ jīng chén fú

教学翻译法在国外外语教学界的地位几经沉浮。

Pedagogical translation in foreign language teaching abroad has undergone ups and downs.

tā zài qù nián cí zhí le zhèng zhì shēng yá jǐ jīng chén fú

他在去年辞职了，政治生涯几经沉浮。

He resigned last year and had a spotty political career.