longing for渴望
preference for,to偏爱,喜爱;优惠;优选
requirement for需要,需要的东西,要求
by comparison比较起来
in sequence依次,逐一
in accordance with与…一致
be accustomed to习惯于
be bound to必定,一定
to and fr0来来回回
on schedule按预定时间
at stake在危险中,利害攸关
on behalf 0f代表…,为了……
on the sly偷偷地,冷不防地
in excess 0f超过
at random随机地,任意地
on sight一见就…,立即