This recognition occurs around their second birthday.

这种认识发生在他们两岁生日前后。

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We'll hold many activities to celebrate our country's seventy-second birthday this year.

今年我们将举行许多活动来庆祝我们国家的72岁生日。

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Katrice disappeared on her second birthday while her family were out shopping for party food.

BBC: Katrice Lee

The child had previously been placed in foster care, soon after her second birthday, following domestic violence in her home.

BBC: NEWS | UK | England | London | Cruelty missed through 'optimism'

In Scotland 93% of young children receive the MMR injection by their second birthday with 92% receiving a second before their sixth birthday.

BBC: Scots medics back MMR jab