Electricity shares are still a safe investment.

　　電力股仍然是小風險投資。

　　He thought of another way of making electricity.

　　他想出另一種發(fā)電的方法。

　　The dynamo conked out so we've got no electricity.

　　發(fā)電機發(fā)生故障，所以我們沒電。