call for需要

例句：More work doesn't necessarily call for more men.
      增加工作不一定要增加人员。

      Your plan will call for a lot of money.
      你的计划需要许多钱。

2.People said they were heroes. The three men said they had done nothing but help put up a flag.

nothing but只有, 只不过

例句：I had nothing in the world but a million-pound note.
      除了一张百万英镑的钞票, 这世上我是一无所有。

      Don't scold her, she's nothing but a child.
      不要责骂她, 她只不过是个孩子。