费力fèilìto expend a great deal of effort; strenuousHSK 7-9PronunciationfèilìExample sentence他费了很大力气才把那口大箱子搬到楼上。tā fèi le hěn dà lìqì cái bǎ nà kǒu dà xiāngzi bān dào lóu shàngHe exerted a great deal of effort to carry the big box upstairs.Read and choose an answerOne fixed sampleExplore a sample