钢琴: piano...
休息: rest, to rest...
清除: to clear away, to eliminate, to get rid of...
到处: everywhere...
文件: document, file...
过滤: to filter, filter...
勒: to strap tightly, to bind...
小时: hour...
使用: to use, to employ, to apply, to make use of...
小区: neighborhood, district...