1. 使精简;使缩小;使小型化
To downsize something such as a business or industry means to make it smaller.

1. reduce in size or number

e.g. the company downsized its research staff

2. make in a smaller size

e.g. the car makers downsized the SUVs when fuel became very expensive

3. dismiss from work

e.g. three secretaries were downsized during the financial crisis