这种敏感范围的缩小，大约发生在婴儿十二个月大的时候。
And this narrowing down is largely in place by about twelve months of age.
敏感的军用设备可以被保护起来，范围内的微波同样会废掉友军电子设备。
Sensitive enemy military equipment can be shielded, and microwaves also disable friendly electronics within range.
你逐渐缩小敏感的范围，直到只对你所使用的语言敏感。
You narrow down until you're sensitive just to the language you hear.
你逐渐缩小敏感的范围，直到只对你所使用的语言敏感。
You narrow down until you're sensitive just to the language you hear.
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