叉车运行时，载荷必须处在不妨碍行驶的最低位置，门架要适当后倾，除堆垛或装车时，不得升高载荷。在搬运庞大物件时，物体挡住驾驶员的视线，此时应倒开叉车。
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I can’t __________________ to take a vacation this year.
This is my first time to make a monthly __________________.
Have you been __________________ your diet?
If you want to save money, you may try to __________________ less often.
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