He was wearing a carnation in his buttonhole.他在扣眼里插了一朵康乃馨。He had a white carnation in his buttonhole.他在纽扣孔上佩了朵白色康乃馨.My flower, seek not thy paradise in a fool's buttonhole.我的花朵啊, 请别在傻瓜的长谈里寻觅你的极乐世界....
There's a great deal of variability between individuals.人和人之间有很大的不同。a degree of variability in the exchange rate汇率的变化幅度There is considerable variability in all the test scores.所有这些考查成绩都有很大变化....