to boost A. to take back or to remove B. to refuse to give C. to become less in number or smaller D. to improve or increase
出自:乐山师范学院商务英语听说

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
向右拖动滑块