half-an-BNC²³⁶²¹³⁺¹ 例句 Figures show more than90% of people in the UK over75 fail to meet international guidelines of half-an- hour moderate intensity exercise at least five times a week. 统计显示,在英国,超过90%的75岁以上的人并没有达到“每周至少五次,每次半小时适当强度的锻炼”的国际指导方针。 yeeyan