I like to be different and stand out.
实际发展水平与潜在发展水平之间的距离,前者由独立解决问题决定,后者由在成人指导下或与更有能力的同伴合作解决问题决定。
Every ton of coal we extract carries equal weight in responsibility.
If the job has been correctly done when a common stock is purchased, the time to sell it is—almost never.