1.   Finally, some explanation could be given for the long-known facts of the external appearance of crystals and their properties.

2.   He gave no explanation for his action, but it seemed to reflect the edginess with which government authorities view the anniversary.

3.   I want to give an explanation of my own experience described there.

4.   No explanation was given, least of all to the thousands of workers living in converted railway wagons around the site.

5.   The police gave no explanation for their actions.

6.   There was then a long delay for which no explanation has been given.

7.   This theory enables one to give an explanation for the existence of the universe, in terms of a goal or purpose.

8.   This will involve some such task as giving an explanation of difficulties, requesting clarification, writing an apology, etc.

9.   He gave no explanation for what he was doing that evening.

10.   The ability to give clear explanations is the most important quality of the ideal teacher.