v.t./i.動詞 (及物/不及物)調整(機器等)He was tuning his bike when I arrived
v.t./i.動詞 (及物/不及物)(幫樂器)調音She was tuning her guitar that morning
adj.形容詞調音的She used a tuning device to check her guitar
v.t./i.動詞 (及物/不及物)調整He was tuning the car to run faster
n. (u.)不可數名詞調音The guitar was out of tuning, so I had to adjust the strings.
n. (u.)不可數名詞引擎調整Engine tuning can significantly increase a car's horsepower.
n. (u.)不可數名詞無線電調諧The radio tuning was difficult, and I couldn't find a clear signal.