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Stroke order
Sentence examples
钢琴出声的琴键一弹琴弦就振动
gāngqín chūshēng de qínjiàn yī dànqín xián jiù zhèndòng
the strings of a piano vibrate when the keys are struck
使空气振动
shǐ kōngqì zhèndòng
to make air vibrate
产生振动
chǎnshēng zhèndòng
to make sth vibrate
振动的频率
zhèndòng de pínlǜ
vibration frequency
