Many system engineers have a hard time understanding their own workload or job behavior.
许多系统工程师很难理解他们自己的工作量或者工作特性。
Rona: I had such a hard time picking. The system are all so cool.
罗娜：我在选题时很为难，所有的系统都很酷。
There are two different real-time systems: hard real-time system and soft real-time system.
实时系统有强实时系统和弱实时系统两种。
There are two different real-time systems: hard real-time system and soft real-time system.
实时系统有强实时系统和弱实时系统两种。
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