马丁·路德·金博士遇害于大约三十年前。
Dr Martin Luther King's murder took place about thirty years ago.
晚餐派对通常开始于晚上七点到八点之间，结束于大约十一点。
Dinner parties usually start between 7 and 8 PM and end at about 11.
大约20个球员目前效力于美国职棒大联盟。
大约10%的患者受益于这种治疗。
实际上，世界上大约一般的人依靠于一种湿地植物- - -水稻。
In fact, about half the world's human population depends on rice, a wetland plant.
研究发现，长时间来看，大约80%的共同基金表现弱于大盘。
Over time, studies show, about 80% actually under-perform the index.
事实上，取决于你怎样数它，总记是大约九千。
Actually, depending on how the counting is done, the total is about 9,000.
事实上，取决于你怎样数它，总记是大约九千。
Actually, depending on how the counting is done, the total is about 9,000.
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