证明: proof, certificate, identification, testimonial, to prove, to testify, to confirm the truth of...
买卖: buying and selling, business, business transactions...
胡乱: careless, reckless, casually, absent-mindedly, at will, at random, any old how...
由此看来: by this token...
挎: to carry (esp. slung over the arm, shoulder or side)...
欠缺: to be deficient in, lapse, deficiency...
悬挂: to suspend, to hang, (vehicle) suspension...
赶快: at once, immediately...
评定: to evaluate, to make one's judgment...
冷水: cold water, unboiled water, not yet ready (of plans)...