and these的用法和樣例:
例句
- A flea has smaller fleas to prey on them, and these have smaller still to bite them, and so proceed ad infinitum.
一隻跳蚤有更小的跳蚤咬它,而後者有更小的咬它們,如此以至無窮。
- This data is correct and These data are correct are both acceptable.
數據正確(英文句中用is或are均可).
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