premature decay meaning in Chinese

早衰

One of the painful prices human beings have paid for their predilection for starchy and sugary foods has been the premature decay and loss of teeth
人类为自己偏爱含淀粉和糖量高的食物而一直在付出的一个惨痛代价是，人未成年就发生蛀牙和掉牙。
With a touch of fear for the young man beside him , whom he furtively scrutinised with an air of some consternation remembering he had just come back from paris , the eyes more especially reminding him forcibly of father and sister , failing to throw much light on the subject , however , he brought to mind instances of cultured fellows that promised so brilliantly , nipped in the bud of premature decay , and nobody to blame but themselves
于是，就怀着几分惊愕悄悄地端详着这个青年，想起他刚从巴黎回来不久，尤其是那双眼睛，令人强烈地联想到他的父亲和妹妹。但这也没能解决什么问题。不管怎样，他想起几个颇有教养者的事例，纵然前程似锦，却过早地凋谢，刚萌芽就夭折了。