When not in use, the fins are tucked into special grooves or depressions so that they lie flush with the body and do not break up its smooth contours.
当鱼不使用鱼鳍时,会将它们折叠起来,收回到特殊的沟槽或者凹陷部位;这样鱼鳍就可以与身体保持齐平,以维持它们平滑的外形。
The table folds up when not in use.
这桌子不用时可以折叠起来。
Body.jsp - not in use.
jsp—不再使用。