1.失灵（非正式）

2.突然睡着（非正式）

英文释义

1. (INFORMAL) To fail and to stop functioning. (NOTE: used in reference to machinery)
2. (INFORMAL) To fall asleep suddenly and deeply.

例句
1.The bus I usually take conked out this morning, and so I had to walk to work, which made me late.
今天早上，我乘坐的公交车突然发生故障，我只得走着上班，结果迟到了。

2.I was so tired when I got home from work last night that I went to bed and conked out without reading or watching TV.
我昨夜下班回来实在太累了，以至于既没看书也没看电视，躺在床上就睡着了。