说明理由

explain the reason

说明真相

explain the truth

说明事故的原因

explain the reason for the incident

为了说明问题

in order to explain the problem

能说明问题的数字

numbers that can explain the problem

举例说明

give examples and explain

向群众说明政府的决定

explain the government's decisions to the masses

不需再加说明

no need for further explanation

报告的说明

explanation of the report

图上附有说明。

The diagram includes an explanation.

事实说明

facts illustrate

这并不说明任何问题。

This does not illustrate any problems.