... lose one's sense of direction辨不清方向 lose one's teeth失去牙齿 lose one's train误火车 ...
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因为她的乳牙最近快要掉了，但是她不想失去牙齿。
Because her Milk Tooth is falling out, but she did not want to lose it.
如果婴儿过早的失去牙齿，恒牙可能会爆发式的错位长出而需要正畸。
If baby teeth are lost prematurely, the permanent teeth may erupt malpositioned and require orthodontics later on.
这是常见的误区，认为宝宝因为蛀牙失去牙齿是无关紧要的，因为宝宝的乳牙总会在将来某一天脱落。
It is a common myth that losing baby teeth due to tooth decay is insignificant because baby teeth fall out anyway.
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