這位講師雖然對自己的學(xué)科很熟悉，卻無(wú)法把有用的東西向學(xué)生講清楚。
The lecturer, though he knew his subject inside out, was quite incapable of getting anything useful over to the students.
把道理跟你母親講清楚，她肯定會(huì )想得通的。
Reason things out with your mother; she sure will come round.
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