This behavior is not required, however.

然而，这些动作不是必需的。

youdao

All the members are required to respect these few simple behavior rules.

全体会员应遵守以下几条简单的规范。

youdao

All the members are required to respect these few simple behavior rules.

全体会员应遵守以下几条简单的规范。

youdao