曲(qū、qǔ)
Origin:

甲骨文的“曲”像曲尺形,本义是“弯曲”,和“直”相对(音qū)。又有“乐曲”的意思(音qǔ)。
On ancient oracle bone inscriptions, the character “曲” resembles a curved ruler, so its original meaning was “bent,” the opposite of straight, and it was pronounced “qū.” It also has the meaning “music” and “song” when pronounced “qǔ.”

Meaning:

bent; twisted; song; tune; music

Words:

是非曲直(shìfēi qūzhí): right and wrong
曲折(qūzhé): bending
曲调(qǔdiào): tune; melody
歌曲(gēqǔ): song

Sentences:

1、Yǒushíhou tā xǐhuan tǎngzài dìbǎn shàng,qū zhe tuǐ,tóu zhěn zài zhǒushàng.
有时候他喜欢躺在地板上,曲着腿,头枕在肘上。
Sometimes he likes to recline on the floor, his legs bent and his head resting on his elbow.

2、ShūBótè wèi xǔduō shīgē pǔle qǔ.
舒伯特为许多诗歌谱了曲.
Schubert set many poems to music.

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