习惯上的，惯常的，合乎习俗的 established by custom; usual or habitual
句型例句
用作定语
▲ ～+n.
He makes his customary visit every week.他每星期都按照惯例造访一次。 The conductor wore the customary white gloves.售票员按照惯例戴着白手套。
用作表语
▲ It is/was+～+(for sb) to-v
Is it customary for the guests at hotels in your country to tip the servants?在你们国家住旅馆的旅客给侍者小费是一种习惯吗? It was customary to wear formal clothes on these occasions.习惯上在这些场合是穿礼服。