开着拖拉机唱情歌骑着自行车说情话
[kāi zhe tuō lā jī chàng qíng gē qí zhe zì xíng chē shuō qíng huà]
Singing love songs on a tractor and telling sweet nothings while riding a bicycle symbolizes simplicity, innocence, and sincerity in expressing love without the need for grand gestures or luxury.