1. Early next morning, she heard planes passing overhead and wondered how she could send a signal.
    第二天清晨，她听到头上有飞机飞过，却不知道怎样才能发出信号，

2. Early next morning, she heard planes passing overhead and wondered how she could send a signal.
    第二天一大早，她听到头顶上有飞机飞过，但不知道怎样才能发个信号。

3. But the ratio is even greater among active women, affecting up to 80 percent of female endurance athletes.
    而这一比例在积极锻炼的妇女中数值更高，女耐力运动员中缺铁的则高达80%。

4. But we are the ones who signal to businesses that what they are doing is okay — every time we buy their products.
    每当我们购买他们的产品时，我们就在向企业发出信号，告诉他们可以这样做。

5. We divided it in the ratio of 3:1.
    我们按照三比一的比例将它分开。

6. Was it the signal?
    这是那信号吗?

7. The soldiers lay in ambush, waiting for the signal to open fire.
    士兵布下伏兵，等待开火的信号。

8. Those who never have to change house become indiscriminate collectors of what can only be described as clutter.
    那些从不需要搬家的人，不分青红皂白地收藏了一些只能说是杂七杂八的东西。

9. Those who never have to move house become indiscriminate collectors of what can only be described as clutter.
    那些从来不必搬家的人们成了一种无所无容的收藏家。

10. His room is always in a clutter.
    他的房间总是凌乱不堪.

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