Eating a balanced breakfast helps to up our energy, as well as make up for protein and calcium used throughout the night.

2019年12月四级真题（第三套）阅读 Section B

Another team at Nagoya University in Japan has tested calcium compound as an energy storage material.

2018年12月六级真题（第二套）听力 Section C

Heating this chemical compound drives off carbon dioxide gas, leaving calcium oxide.

2018年12月六级真题（第二套）听力 Section C

The company boasts that its dried crickets contain more protein than beef, chicken, and pork, as well as minerals like iron and calcium.

2019年12月六级真题（第二套）听力 Section B

To recover the energy, the gas is fed back over the calcium oxide.

2018年12月六级真题（第二套）听力 Section C

Previous studies have also indicated that milk can be excellent for helping sleep because of the calcium content, which helps people to relax.

2016年高考英语四川卷 阅读理解 阅读D 原文

So condors with high levels of lead are sent to Los Angeles zoo, where they are treated with calcium edta, a chemical that removes lead from the blood over several days.

2016年高考英语北京卷 阅读理解 阅读C 原文

For example, heavier women are less likely to develop calcium deficiency than thin women.

2014年考研真题（英语二）完形填空 Section Ⅰ