Four points stand out as being more important than the rest.

　　有四點比其余各點更為重要。

　　Don't let this go further than these four walls.

　　走出屋外這事就不要再談了。

　　I found it a strain looking after four children.

　　我覺得照料四個孩子挺累的。

　　Students will normally take four or five AS subjects.

　　學生通常要選四門或五門高級證書輔助考試學科。

　　There are four GPs in our local practice.

　　在我們地區診所有四個全科醫生。