2、依靠,依赖 Somaybeyoudependoncomputersmorethanyourealize.=Somaybeyouneed/relayoncomputersmorethanyourealize.3.commonknowledge众所周知的事情 It’scommonknowledgethatcomputersaresupercalculators.=It’ssomethingknownbyeveryonethatcomputersaresupercalculators.4.calculatorn.计算器 cal