举个简单的例子，罗妮只需要18个“课时”就能掌握5个数字的排序，许多猴子需要超过50个“课时”才能完成这个任务，而狐猿需要的时间超过500个“课时”。

For an example, it took her 18 sessions to graduate to five numerals. Many monkeys needed over 50 sessions to get there. Poor old lemurs required over 500 sessions.

youdao

举个简单的例子，罗妮只需要18个“课时”就能掌握5个数字的排序，许多猴子需要超过50个“课时”才能完成这个任务，而狐猿需要的时间超过500个“课时”。

For an example, it took her 18 sessions to graduate to five numerals. Many monkeys needed over 50 sessions to get there. Poor old lemurs required over 500 sessions.

youdao