三项的的英文：
trinomial

It earned three Grammy Awards.
它赢得三项格莱美奖。

Junior Individual Entry (18 and under): MOP/HK$100 for the three races.
少年个人(十八岁或以下):参加三项赛事总费用为澳门币/港币一百元整。

Although the origi of taekwondo date back thousands of years, the triathlon dates back to1978.
跆拳道的起源可追溯到几千年以前，而铁人三项在1978年才诞生。

Whether it's to lose fat and gain muscle or to run a triathlon, it's vital to have a goal to work toward.
不管是减去脂肪、增加肌肉，还是进行三项全能运动，有一个努力的目标是至关重要的。

Three important inferences can be drawn from the figures I have cited.
以上所提数字代表着三项重要的指针

These examples can be reduced to three heads.
这些例子可归纳为三项。

There are three main items on our agenda.
我们这次代表大会的主要议程有三项.

She's competing in three races at the school's swimming gala.
她参加了学校游泳盛会的三项比赛。

However if a problem arises in one of the last three issues it will manifest itself in some form on an illness.
不过，如果后三项出了问题，他总会以某种疾病的方式表现出来。

Equestrian consists of three disciplines: jumping, dressage and eventing.
马术比赛包括三项赛事：障碍赛、花样骑术和综合全能马术赛。