Europeans did not know of them until the 1500s, when Portuguese ships arrived on the coast of what is now Sierra Leone.
直到16世纪，当葡萄牙的船只抵达现在的塞拉利昂海岸时，欧洲人才知道它们的存在。
The cinema did not emerge as a form of mass consumption until its technology evolved from the initial "peepshow" format to the point where images were projected on a screen in a darkened theater.
电影播放技术由最初的“西洋镜”的形式演变而来，直到其发展到一个时期；在这个时期中，影像被投影到幽暗的影院屏幕之上，电影才作为一种大众消费的形式而出现。
Banks closed on Friday afternoon and did not open again until Monday morning.
银行星期五下午关门，直到星期一早上才会再开门营业。
We observe that the first calls for radical transformation did not begin until the period of the industrial revolution.
我们认为，首次要求彻底改革的呼声直到工业革命时期才出现。
The court bailiff said jurors did not wish to speak to news media until the sentencing.
法院法警说，陪审员不想在宣判之前接受新闻媒体采访。
Not until he went through real hardship did he realize the love we have for our families is important.
直到经历了真正的苦难后，他才意识到我们对家人的爱是重要的。
We did not know how much danger we were truly in until we learned the truth behind the unfortunate death of music legend Michael Jackson.
直到我们了解到音乐传奇人物迈克尔·杰克逊不幸去世背后的真相，我们才知道我们的处境有多么危险。
Not until recently did they encourage the development of tourist-related activities in the rural areas.
直到最近，他们才鼓励在农村地区开展与旅游相关的活动。
Not until about ten million years later did species of whales develop specialized kidneys enabling them to drink salt water.
直到大约1000万年后，鲸类才进化出专门的肾脏，使它们能够饮用盐水。
He persuasively argued that such an ice-free corridor did not exist until much later, when the continental ice began its final retreat.
他很有说服力地指出，直到很久以后，当大陆上的冰开始最后消退时，才有了这样一条没有冰的走廊。
Not until the war France in 1697 did William III persuade Parliament to create a professional standing army, and Parliaments price for doing so was to keep the army under tight legislative control.
直到1697年的法国战争，威廉三世才说服国会建立一支专业的常备军，而国会这样做的代价是将军队置于严格的立法控制之下。
Not until 1983 did another Englishman, Bryan Robson, captain the side to FA Cup success as he did in 1909.
直到1983年才有另外一个英国人，布莱恩·罗宾逊，重现了他1909年的辉煌，再次举起了足总杯。
Sanitation did not become widespread until the 19th century.
直到19世纪，卫生设施才开始普及。
They did not become popular until the emergence of improved batteries.
直到电池有所改善，它们才变得流行起来。
The Egyptians, however, did not discover leavened bread until about 3000 B.C.
然而，埃及人直到公元前3000年才发现发酵面包。
Arthur cut birch for his father but did not make his first broom until he was 18.
亚瑟为他父亲砍伐白桦，直到18岁才制作了自己的第一把扫帚。
Later people used dogs for hunting other animals, and dogs did not eat what they got until their masters agreed.
后来人们用狗来狩猎其他动物，并且直到主人同意，狗才吃它们得到的东西。
Now, something had been happening there a little before, which I did not know anything about until a good many days afterwards, but I will tell you about it now.
不久以前这里发生过一件事，我直到好多天以后才知道，但现在我要把这件事告诉你。
The introduction of new screen formats was put off for a quarter century, and color, though utilized over the next two decades for special productions, also did not become a norm until the 1950s.
新屏幕格式的引入被推迟了四分之一个世纪，而颜色尽管在接下来的二十年里被用于特制产品，它也是直到二十世纪五十年代才成为一种常态。
Her hobby for collecting the shoes did not begin until 2000, when she found a beautiful pair at a Spring Festival market.
她收集鞋子的爱好直到2000年才开始，当时她在春节集市上发现了一双漂亮的鞋子。
Lao Pan did not begin to understand China until he and his family took a 3-month drive around the country.
直到老潘和家人驱车周游中国三个月后，他才开始了解中国。
The fax machine did not become a necessary piece of equipment in every office until the 1980s.
直到20世纪80年代，传真机才成为每个办公室的必需品。
Until California recently passed a law, American firms did not have to tell anyone, even the victim, when data went astray.
直到最近加州通过了一项法律，美国公司在数据丢失时都无需告知任何人，即使是受害者。
Exports to the West did not surge until 2000.
2000年之前对西方的出口量不是很大。
Not until the early 20th century did another fleet of comparable size take to the seas.
直到20世纪初叶，中国才有另一支相当规模的船队驶向大海。
Not until 2003 did minerals begin to boom again, though by then Australia had escaped both the Asian crisis and the recession that hit America in 2001.
一直到2003年矿产交易再次兴旺时，尽管那时澳大利亚逃脱了亚洲金融危机和重创美国的2001年经济衰退。
Not until 2003 did minerals begin to boom again, though by then Australia had escaped both the Asian crisis and the recession that hit America in 2001.
一直到2003年矿产交易再次兴旺时，尽管那时澳大利亚逃脱了亚洲金融危机和重创美国的2001年经济衰退。
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