英语翻译：
know sth. like the palm of one's hand; know very well
分词翻译：
了的英语翻译：
end; finish; know clearly; oversee; settle; understand
如的英语翻译：
according to; as; as if; for instance; like; such as
指的英语翻译：
depend on; digit; finger; indicate; point
【医】 dactyl; dactylo-; dactylus; digit; digiti; digiti manus; digitus
finger
掌的英语翻译：
control; horseshoe; palm; shoe sole; sole
【医】 metacarpus; palm; palma; palma manus; palmae; torus manus; vola