Saying "Goodbye" to mom and then "Guten tag" to your teacher, or managing to ask for a crayola roja instead of a red crayon, requires skills called "inhibition" and "task switching".

道别时对妈妈说 “Goodbye”，对老师说 “Guten tag”，或者要红色蜡笔时不说 “red crayon”，而说 “crayola roja”，这都需要调动“约束任务”和“切换任务”的技能。

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