有空补课看完了，送你一句歌词吧：When we sway I go weak

or When we sway I grow weak
爱情会产生你的 knee weak.LOL 
这是一首老掉牙的爵士歌曲，应该是上个世纪三四十年代的吧：
Sway
[Chorus]
When marimba rhythms start to play
Dance with me, make me sway
Like a lazy ocean hugs the shore
Hold me close, sway me more
Like a flower bending in the breeze
Bend with me, sway with ease
When we dance you have a way with me
Stay with me, sway with me
[Refrain]
Other dancers may be on the floor
Dear, but my eyes will see only you
Only you have that magic technique
When we sway I go weak
I can hear the sounds of violins
Long before it begins
Make me thrill as only you know how
Sway me smooth, sway me now
[Instrumental Break]
[Refrain]
Other dancers may be on the floor
Dear, but my eyes will see only you
Only you have that magic technique
When we sway I grow weak
I can hear the sounds of violins
Long before it begins
Make me thrill as only you know how
Sway me smooth, sway me now