Traveling by air may be quicker , but not so (cheap)/(cheaper). 选择
问题描述:
Traveling by air may be quicker , but not so (cheap)/(cheaper). 选择
答
cheap, 如果没有 so 的话 cheaper 也可以
Traveling by air may be quicker , but not so (cheap)/(cheaper). 选择
cheap, 如果没有 so 的话 cheaper 也可以