casual knowledge 基本认识；更多例句筛选1.Those who are able to should also try and pick up at least a casual knowledgeof another Singapore language, besides their mother tongue.除此之外，那些行有余力的人，更应该尝试对母语以外的至少一种本地语言有基本认识；2.To display personal charm in a casual and natural way, it is important for one to have a clear knowledge of oneself.通过一种舒适又自然的手法展示个人魅力，更重要的是可以很好的认识自我。
