◎理所當(dāng)然
[justifiably; a matter of course; as it ought to be; be both natural and right; it goes without saying; it is what propriety requires] 按道理應(yīng)該如此
就把來結(jié)識(shí)了這位大哥，也是理所當(dāng)然?！?/span>明·馮夢(mèng)龍《醒世恒言》
⒈ 以理而言應(yīng)當(dāng)如此。
引《醒世恒言·陸五漢硬留合色鞋》：“（這兜肚）就把來結(jié)識(shí)了這位大哥，也是理所當(dāng)然?！?br/>《說岳全傳》第五二回：“此乃各為其主，理所當(dāng)然，何罪之有！”
老舍《柳家大院》：“誰(shuí)還管青紅皂白，先揍完再說，反正打媳婦是理所當(dāng)然的事?！?/span>
以理而言應(yīng)當(dāng)如此。《朱子語(yǔ)類．卷六○．孟子．盡心上》：「只是理所當(dāng)然者便是性，只是人合當(dāng)如此做底便是性?！埂缎咽篮阊裕硪涣懳鍧h硬留合色鞋》：「就把來結(jié)識(shí)了這位大哥，也是理所當(dāng)然?！挂沧鳌咐砉坍?dāng)然」。