1. | [i][t] 扩大，增加，增强（尺码、数量或重要性）to become greater in size, number or importance; to make sth greater in size, number or importance |
Metals expand when they are heated. 金属受热会膨胀。 | |
Student numbers are expanding rapidly. 学生人数在迅速增加。 | |
A child's vocabulary expands through reading. 孩子的词汇量通过阅读得到扩大。 | |
The waist expands to fit all sizes. 腰部可松可紧，适合任何尺码。 | |
In breathing the chest muscles expand the ribcage and allow air to be sucked into the lungs. 呼吸时胸部肌肉使胸廓扩大让空气吸入肺部。 | |
The new system expanded the role of family doctors. 新体制扩大了家庭医生的作用。 | |
There are no plans to expand the local airport. 目前没有扩建地方机场的计划。 |
2. | [i][t] 扩展，发展（业务）if a businessexpands oris expanded , new branches are opened, it makes more money, etc. |
an expanding economy(= with more businesses starting and growing) 不断发展的经济 | |
We've expanded the business by opening two more stores. 我们增开了两家商店以扩展业务。 |
3. | [i] 细谈；详述；详细阐明to talk more; to add details to what you are saying |
I repeated the question and waited for her to expand. 我把问题重复了一遍，等着她详细回答。 |
