A vocabulary like that of the English language takes at least 10 years to learn thoroughly, and its complexity requires constant use to maintain fluency, but it can be extraordinarily expressive for a skilled user.

• 像英语词汇至少要花费10年才能全部学完，并且其复杂性要求不断使用才能保持流利。 但是对于熟练的用户来说，它极富表现力。