This is the 910th most frequent Chinese word.
营
"营" means camp, operate, manage, or seek profit, depending on context.
In this sentence, "营" is used as an abbreviation for "营地" (camp), specifically referring to a military camp.
军营里的士兵每天都进行训练。
The soldiers in the military camp train every day.
Here, "营" is part of the word "夏令营" (summer camp), used to denote an organized activity program.
这个夏令营教会了孩子们许多新技能。
This summer camp taught the children many new skills.
In this example, "营" is used in the word "营养" (nutrition), relating to providing or obtaining nutrients for growth and health.