我的第一份工作是组织一个大型会议——他们真是把我扔进了深水区，毫无准备！

My first job was to organize a huge conference - they really ___threw me ___in ___at ___the ___deep ___end!

有时我们可能被扔进深水区，对做决定感到犹豫。

Sometimes we can be ___thrown ___in ___at ___the ___deep ___end and have qualms about making a decision.

新经理没有经过任何培训或指导就被扔进了深水区。

The new manager was ___thrown ___in ___at ___the ___deep ___end with no training or guidance.