Typically--I don't know for those particular children, but typically on those tasks three-year-olds and young four-year-olds tend to fail, and around the age of four or five kids tend to succeed.

我不太了解那些特定儿童的情况,但一般来讲,三岁和刚进入四岁的儿童,通常会在这些任务中失败,而四岁或是五岁左右的儿童则通常会成功

耶鲁公开课 - 心理学导论课程节选

Typically--I don't know for those particular children, but typically on those tasks three-year-olds and young four-year-olds tend to fail, and around the age of four or five kids tend to succeed.

我不太了解那些特定儿童的情况,但一般来讲,三岁和刚进入四岁的儿童,通常会在这些任务中失败,而四岁或是五岁左右的儿童则通常会成功

耶鲁公开课 - 心理学导论课程节选