Expressing "among" with "dangzhong"

当中（dāngzhōng） means "among", or more literally "in the middle of". In English this is a bit like "of", where you would say, "of all of my friends, you are the most loyal".

For example:

• 你 是 我 所有 朋友 当中 最 忠实 的 一 个。
• 在 这 一百 个 选手 当中 我 表现 得 最 出色。
• 这 个 工程 还在 计划 当中。

When used to express "among" it is a little like 其中. However we can use 当中 to say in the middle of an activity or process, like in the last example.