如果你必须爬上去,就用一个稳固的平台或者一个结实的梯子。
If you have to climb up, use a firm platform or a sturdy ladder.
如果你必须涵盖美国史的12个章节,首先计划3次2小时的复习,每次4章。
If you have to cover 12 chapters in American history, begin by planning on three two-hour reviews with four chapters per session.
去吧,如果你必须独自上路。
He said, "If you want to understand the South," he said, "Its taproot is back there in the Old South."
如果你想读懂南方",他说,"那你必须追溯到内战前的南方"
If you want to buy the company you have to buy up all the debt and all the equity.
如果你想买下公司,你必须买下所有的负债和股票
If the question of time is not explicitly brought up, then you should know that you have to use this formula.
如果时间的问题并没有明确提出,那你应该知道,必须要用这个式子
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