对于你打算购买的任何船只，都要仔细检查发动机支撑臂。
Check the bracket carefully in any boat you are considering.
许多舷外发动机支撑臂，就像上图中所示的那个一样，可以上下移动以使发动机抬起或下降。
Many outboard brackets, like the one shown here, can be moved up and down to raise and lower the motor.
当发动机的功率耗尽时，电池在10分钟内就会耗竭——如果连续不充电，它们还能靠化学反应支撑的话。
With the engine performing at full capacity, the batteries would be drained in the space of 10 minutes -- if they were even chemically capable of withstanding such a rapid discharge.
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