First-order theory

first [fɝst]

n. 第一，最初;头等;一号，;[乐]高音部; adv. 最早，最初;首次;宁愿;优先; adj. 第一流的;最初的，最早的;基本的，概要的;高音的; num. 第一;

order ['ɔ:də]

n. 命令;秩序;规则，制度;次序; vt. 命令;订购;整理; vi. 下订单;

theory ['θiəri]

n. 学说;理论;原理;推测;

theor思考 + y 抽象名词 → n. 理论,原理;学说;意见,看法

You're right. Of course.

说得也是。

We have not agreed on the price yet.

我们对于价格的意见尚未一致。

On our way home that night I looked down and saw that the necklace was not around my neck any more. I told Pierre. We rushed back to the palace and looked for it.We asked everyone there if they had found a necklace, but without luck. We couldn't find it;

那天晚上在回家的路上，我低头一看，发现项链不再挂在我的脖子上了。我告诉了比尔。我们马上赶回王宫去寻找。我们询问了那儿的每一个人，问他们是不是拾到了一条项链。可是，真倒霉。我们找不到那条项链；它丢失了。