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上个星期，我六岁的儿子皮尔逊从学校回来，少了一颗门牙。
Last week my six year old, Pierson, came home with his front tooth missing.
youdao
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一颗约六英里直径的陨石，被认为是造成恐龙物种灭绝的罪魁祸首。
One, about six miles across, is thought to have wiped out the dinosaurs.
youdao
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星期六我掉了一颗牙。
On Saturday I lost one tooth.
youdao
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星期六我掉了一颗牙。
On Saturday I lost one tooth.
youdao