real：adj.真实的；实际存在的；非凭空想象的；真的；正宗的；
adv.非常；很；n.实在；现实；实数
To make the training realistic the simulation operates in real time.
为使训练真实，模拟是实时运行的。
It was a real struggle to be ready on time.
要按时做好准备确非易事。
There's a real touch of class about this team.
这支队确实技艺超群。
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