留下足迹 track

留足长度 Length reserve enough money ; sufficient length

足下留情 unsentimental journey ; The strength of mercy ; Enough mercy

使我驻足停留 keep me away

扫刀时间停留不足 Not enough time dwell

满足实质居留测试的人 Substantial Presence Test

月初的几天里留不足地 give just some spgenius