口 kǒu, mouth/classifier for things with mouths (people, domestic animals, cannons, well... 力 Lì/lì, surname Li, power/force/strength/ability/strenuously 勒 lè/lēi, to rein in/to compel/to force/to carve/to engrave/(literary) to command/to lead/... 革 gé, animal hide/leather/to reform/to remove/to expel (from office) 嘞 lei, sentence-final particle similar to 了[le], but carrying a tone of approval