excellent前面用a还是an

excellent前面用an，因为是以原音因素开头,不是因为元音字母开头,比如hour也是用an,因为hour也是以元音因素开头,不是因为它以元音字母开头。

excellent

adj.优秀的;杰出的;极好的;(用以表示愉快或赞同)好极了，妙极了

We made excellent time and arrived in Spain in two days.

我们一路很顺当，两天后就到了西班牙。

The house was reported as being in excellent condition.

报告说明这房子的状况极佳。

The house was reported to be in excellent condition.

报告说明这房子的状况极佳。

You\'ve certainly made an excellent job of the kitchen.

你们把厨房弄得好极了。