起伏

chuán suí zhe bō làng shàng xià qǐ fú

船随着波浪上下起伏。

The ship heaves with the waves.

shān luán qǐ fú

山峦起伏。

The mountain ranges rise and fall.

gōng lù qǐ fú bù píng

公路起伏不平。

The highway humps and dips.

bìng rén bìng qíng yòu yǒu qǐ fú

病人病情又有起伏。

The patient has yet had another relapse.

tā men de guān xi qǐ fú bù dìng

他们的关系起伏不定。

There have been ups and downs in their relations.

liǎng guó guān xi chū xiàn le yī xiē qǐ fú

两国关系出现了一些起伏。

Relations between the two countries have entered a bumpy patch.