
好词典

源自拉丁语 'concentratus'(集中),由 'com-'(一起)和 'centrum'(中心)组成,16世纪进入英语。
❶ 指物质或液体中某种成分的含量很高,通常表示经过浓缩或提纯后的状态。
“This orange juice is made from concentrated fruit extract.”
(这种橙汁由浓缩果汁制成。)
“The scientist used a concentrated acid solution in the experiment.”
(科学家在实验中使用了浓缩的酸溶液。)
❶ 形容注意力或精力高度集中,完全专注于某件事的状态。
“The students remained concentrated throughout the three-hour exam.”
(学生们在三小时的考试中始终保持专注。)
“She gave a concentrated effort to finish the project on time.”
(她集中精力按时完成项目。)
concentrated fire — 军事术语,指集中火力对特定目标进行攻击。
“The troops used concentrated fire to breach the enemy defenses.”
(部队用集中火力突破敌方防线。)
concentrated area — 指特定事物高度集中的区域,如人口密集区或商业中心区。
“This district is a concentrated area of tech startups.”
(这个区域是科技初创企业的集中地。)