【计】 parentheses nesting
brackets; parentheses; parenthesis
layer; region; stage; story; stratum; tier
【计】 layer
【医】 coat; lamella; lamellae; lamina; laminae; layer; strata; stratum
a few; count; enumerate; fate; frequently; list; number; numeral; numeric
reckon; repeatedly; serveral
【计】 crossing number; N
【医】 number
【经】 number
