It's hard to discern his true intent_初级英语口语

It's hard to discern his true intention in such a short period of time.
要在如此短的时间内看出他的真正企图是好难的。
discern,看出，辨出。
discern good from evil分辨善与恶。
He almost could not discern the road in the dark.他几乎不能在黑暗中辨认出路来。