His reasoning is that everyone will hit a wall early on in the rapid learning stage and that "pre-committing" to 20 hours is a sure-fire way to push through that wall and acquire your new skill.

他的理由是，每个人在早期快速学习阶段都会碰壁，“预提交”20个小时是避免碰壁和成功学习一门新技能的必经之路。

youdao

Dr Carney was also quite forthright about the potential usefulness of pre-committing the Monetary Policy Committee to keeping rates low for a certain period of time.

BBC: Governor Carney: Same remit, new ambition

Jim Wells for the DUP said that his party wanted the police to have powers to deal with situations of anti-social behaviour where the committing of a crime could be pre-empted.

BBC: Anti-social behaviour