| 释义 |
If, if, i.f., i-f abbr.intermediate frequency if [if] conj. [表示条件或假设]如果；假如，倘若，要是：If I knew, I would say.如果我知道，我就说了。If I were you, I would have failed.如果我是你，我可能会失败的。Return if undelivered.无法投递请退回原处。If weather permits, we'll fly to London tomorrow.要是天气允 |