What exactly is 动宾短语?
兼语 is a structure where VO &amp; SV combine to form V(O/S)V.

e.g.

让他（VO）+他吃饭（SV）=让他吃饭（兼语句式）

兼语 is inherited from Classical Chinese, ans is still common today.

e.g.

权即遣肃行。（《资治通鉴》）

Often we can omit (O/S) if the context permits:

权即遣行。

计未定，求人可使报秦者。（《史记•廉颇蔺相如列传》）

EDIT:

It's clear that 动宾短语 is Verb-Object Phrase~

（孙）权即遣（鲁）肃行

孙权 immediately send 鲁肃 to go (to build up alliance).