n. 節約;節儉;儲蓄金;挽救;
v. 拯救( save的現在分詞);收集;保留;避免;
prep. 除…以外;
adj. 可取的,保存的;節省的,節約的;補償的;救助的;
?? sav節省+ing名詞后綴 → 節省,節約
"electrical labour-saving devices around the home"
節省勞力的各種家用電器
近義:sparingness, thrift, economy, rescue, salvage, lean
反義:loss, misuse, spoilage, squandering, thriftlessness, wastage