3. [transitive ] bounce sb (up and down) (on sth) to move a child up and down while he or she is sitting on your knee in order to entertain him or her 把小孩放在膝上颠着玩 4. [intransitive , transitive ] bounce(sth) (up and down) to move up and d...
2. There is no difficulty in doing sth结构。意为“做某事没有困难”: There is no difficulty in finding his office. 找到了他的办公室没费一点劲。 There was no difficulty in carrying out the plan. 执行这项计划没什么困难。 3. There’s no doubt of sth. /...
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