half-a-BNC²³⁶²¹³⁺¹ 例句 They have discovered that middle-aged men who drank half-a- litre of juice every day for a month, equivalent to about two glasses, saw a significant decline in their blood pressure readings. 他们发现中年男子每天喝半升果汁相当于两杯，坚持一个月，可以看到他们血压呈明显的下降趋势。 hxen