spare

a.备用的；多余的 v.节省；饶恕

spacewalk, spacing, spacious, spaciously, spaciousness, spackle, spade, spadeful, spadework, spaghetti, Spain, spam, span, spangle, spaniel, Spanish, spank, spanking, spanner, spar, spare part, spare tyre, spare-rib, spare...from, sparing, sparingly, spark, sparking-plug (also `spark-plug), sparkle, sparkler, sparkling, sparks, sparring-partner, sparrow, sparrow-hawk, sparse, sparsely, sparsely-populated, spartan, spary,