intentional_language_learning

1.Some researchers think that it is impossible for a mother language to be acquired wholly through intentional language learning, and probably through incidental vocabulary acquisition.
有研究者认为，母语词汇的学习不可能完全是通过刻意学习获得，而很可能是在进行其他学习任务时附带习得的。
dict.yoduao.com
2.Most previous second language vocabulary acquisition research has focused on incidental learning, and yet little is known about intentional learning.
二语词汇习得研究多关注二语学习者的顺带词汇学习，而二语学习者的刻意学习少有提及。
dict.yoduao.com