Families of six or seven are the norm in Borough Park.在区公园住宅区六口或七口之家十分普遍。a departure from the norm一反常态Of his age, the child is above the norm in arithmetic.在他那个年龄, 这个孩子的算术能力是超过标准的....
It is conventional to place the independent variable on the right-hand side of an equation.普遍做法是把自变量放在等式的右边。The first catalytic converters were called conventional oxidation catalysts.最初的转化器叫做常规氧化催化器.This extremist organ...