婴儿的视力在出生后的头几个月内迅速发育。
A baby's vision develops rapidly in the first few months of life.
为什么成功的交易员能够年复一年的盈利，而新手却在交易的头几个月内损失一空？
Why do successful traders keep making money year after year, while the newbies lose everything within the first few months?
在苹果的iPad加上前后摄像头以后，增强实景可能会迎来一个巨大的爆发期，而这一升级将可能在几个月内实现。
Ar could get a big boost when Apple 'iPad adds front and rear cameras, an upgrade that could arrive within months.
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