請翻開課本第一頁的英文

Please turn to the first page of the textbook

翻開課───Open class;第一頁───first page

Helen gained some compensation for her earlier defeat by winning the final open class.───海倫通過贏得公開賽的決賽獲得了對先前失利的一些補償。

The easiest is the open class.───最簡單的是打開類。

Open - class words: those whose membership is in principle infinite or unlimited.───開放類詞: 其成員數目原則上是無窮的,無限的.

Please describe an example of an "open class".───請描述一次公開課的例子。

Helen gained some compensation for her earlier defeat by winning the final open class.───海倫在公開組決賽中取勝，這對她早先的失敗算是一種補償。

Both animals were the only Rottweilers in the open class to gain a V rating.

This might suggest that the major difficulty with closed class items is that they are harder to access than open class items.

Volunteers to boost open class will be most welcome.

Helen gained some compensation for her earlier defeat by winning the final open class.

So it seems unlikely that closed class items were more difficult to retrieve than open class items.