这些软壳龟比硬壳龟更脆弱。

These ___soft-shelled turtles are more vulnerable than the hard-shelled ones.

大学刚毕业的新人在没有适当指导的情况下开始工作时，常常会感到无所适从。

Fresh college graduates often feel ___soft-shelled when starting work without proper mentorship.