However, they are a life saver when it comes to cutting out backgrounds or removing parts of layers.
然而,它对于裁剪背景层或者删除图层的一部分非常有效。
At low water, trapped shrimps and fish become easy prey, a life saver for these endangered birds.
在浅水中被困的鱼虾易于捕食,成为了这些濒危鸟儿们的救命粮草。
They see SEO as a life saver in the massive World Wide Web.
他们认为,在庞大的万维网的生活节省搜索引擎优化。