mindmap root((摇晃)) shake often carries a further implication of purpose: ~ well before using. agitate suggests a violent and prolonged tossing or stirring: strong winds ~d the leaves on the trees. rock suggests a swinging or swaying motion that is likely to result from violent impact or upheaval: the entire city was ~ed by the explosion. convulse suggests a violent pulling or wrenching as of a body in a paroxysm: we were ~ed with laughter.