不幸的是,大鼻子是家族特征。
Unfortunately a big nose is a family ___characteristic.
感伤似乎是那个时期所有作家的一个特征。
Sentimentality seems a ___characteristic of all the writers of that period.
雄鸟展示了几种区别于雌鸟的特征。
The male bird displays several ___characteristics which distinguish him from the female.