obligatory 雅思托福GRE专八

It is obligatory on every citizen to safeguard our great motherland.

保卫我们伟大的祖国是公民应尽的义务。

Moreover, they can be distinguished semantically as the obligatory semantic features of the dynamic adjective are "willed" and "internality", and the static adjective "unwilled" and "externality".

动态形容词具有“有意志”性和“内在特征”性，与此相对，静态形容词具有“无意志”性和“外在特征”性。

If this person performed Hajj at his brother's cost when he was a child, then he must perform the fard (obligatory) Hajj when he is able to do so.

如果人在幼年用兄弟的钱完成了朝觐，他必须在成年后有能力时再次完成主朝觐。