I'm sure a lot of you've already known those rds, about and around.

我想在座的大多知道about和around。

Notice how the emphasis falls on the number, not the rd odd.

注意到该句话的重音是放在数字上的，不是放在odd上的。

We need to add that 'rd', the twenty-third of July.

我们需要加上那个 'rd'，七月二十三。

But I still have " rd Joel Wolowitz" Left to go.

但名字的剩余部分我还没说完呢。

You're not after my b rd, are you?

你们不是来抓我的鸟的吧?

The PDT model was implemented to realize a web-based management information system for a digital orcha rd, and the digital system had been applied in Shandong Province, China since 2013.

PDT模型被应用于个基于网络的数字果园管理信息系统，该系统自2013年起在中国山东省投入使用。

Now this rd odd is perhaps not as useful as around or about because we only use it for counting – we can't use it to talk about someone's age or to give an idea of the time.

但是odd没有about和around常用，因为我们只能用odd来表达数量上的模糊概念，不能用它去形容的年龄以及表达时间概念。