10点30分用英语两种表达是：Ten Thirty，half-past ten；

Ten：num. 十。

Thirty：num. 三十; 三十几; 三十年代。

half：n. 一半; 半; (比赛、音乐会等的)半场，半局; (啤酒等饮料的)半品脱。

past：adj. 过去的; 昔日的; 刚过去的; 刚结束的; 从前的; 以往的。

扩展资料

I turn on the television and watch the children's programmes and old movies until about half-past ten.

我总是先打开电视，看看儿童节目，看看老片子，一直看到十点半。

I reached my destination around half-past two.

我在两点半左右到达了目的地。

To meet you at half-past six in the evening.

晚上六点半接你们。

They reached the walls about half-past twelve, without having met anyone;

十二点半，他们到了庙墙脚下，路上一个人也没碰上。

At half-past five she reached home, and at six her determination was hardened.

5点半她回到了家。到了6点，她的决心坚定了。