大卡的英文：
kilocalorie

The calorie is the unit usually used for measuring the amount of energy transfer in biochemistry
生物化学中测定能量转移量的单位是大卡。

A big truck trying to get into a small parking space fouled up traffic
一辆试图开进小停车场的大卡车把交通阻塞了。

Ardythe showed him where the papers were-in three large cardboard cartons in what had been Walter's den
阿黛丝指给他看文件在哪里--在过去是沃尔特书房的三只大卡纸板盒子里。

It equals to a kilocalorie of heat.
它等于千卡路里的热量。

The unit of heat we use most frequently is the kilocalorie.
我们最常用的热量单位是千卡。