在线词典稀松极为松散。引申指马虎﹑差劲或不严格; 轻松不费劲;无关紧要。拼音xī sōng解释极为松散。引申指马虎﹑差劲或不严格; 轻松不费劲;无关紧要。英文释义poor; sloppy; unconcerned; heedless; lax; unimportant; trivial; loose