(1)依靠，指望(be dependent on)[I+prep(on/upon)]：～on social security money/sb's assistance/oneself 依靠社会保险金/某人的帮助/自己;We can't～on the weather. 我们不能依靠天气。Don't～on going abroad/getting my money back in due time. 别指望出国/到时能把我的钱收回来。～on him (his) coming in time/going to work 指望他能及时来/去上班;～on sb to help/finish the work/keep his promises 指望某人帮助/完成这项工作/履行他的诺言;～on sb for help/success 依靠某人的帮助/依靠某人而获得成功;～on the seasonal tourist industry for jobs 依靠季节性旅游业提供就业机会;You may～on it that she won't be late/it will rain tomorrow. 你可以放心她不会迟到的/明天会下雨。They can't be～ied upon to offer much support/tell the truth. 不能指望他们提供太多的帮助/讲出真相。〖同〗count，depend;

(2)信赖(任)(have trust or confidence in)[I+prep(on/upon)]：～on sb's promise/sb's judgment/sb's magic 相信某人的诺言/判断/魔法;You can～on us. 你可以信赖我们。His words can't be～ied on. 他的话靠不住。We can～on the firefighters to come as quickly as they can. 我们相信消防队员们会尽快赶来的。〖同〗feel sure;

【辨异】rely on与count on的区别见COUNT ON。