be of

possess intrinsically; give rise to

固有；导致

this work is of great interest and value.

这项工作很重要也很有价值。

of all

denoting the least likely or expected example

［表示最不可能或最料不到的事例］在所有…中（编编，就连，居然）

Jordan, of all people, committed a flagrant foul.

就连乔丹也有过一次明目张胆的犯规。

of all the nerve(或英 cheek)

an expression of indignation

［表愤慨、不平］居然

of an evening (或 morning etc.) informal 非正式

on most evenings (or mornings etc.)

大多数晚上（或早晨等）

at some time in the evenings (or mornings etc.)

晚间（或早晨）的某个时候