Police in riot gear were in attendance as a precautionary measure.

　　身著防暴服的警察到場實施預(yù)防行動。

　　Attendance on the course is purely voluntary.

　　聽這門課純粹是自愿的。

　　Attendance at my lectures has fallen off considerably.

　　聽我講課的學(xué)生大大減少了。

　　We figured the attendance at 150 000.

　　我們估計有15萬人參加。

　　He would have a nurse in constant attendance day and night.

　　會有一位護士日夜不間斷地陪護著他。