翻译和例句：
in the activity, you are attached to a wire (金属线) that stretches (延伸) from the top of a cliff (悬崖 ……
as today’s wireless phone chargers: a metal coil (金属线圈), placed into a magnetic field (磁场...;The science behind this is the same as today’s wireless phone chargers: a metal coil (金属线 ……
. The wires (金属线) used in braces today are also smaller, and they can straighten your teeth faster... teeth instead. There are even braces that go behind your teeth where no one can see them. The wires (金属线 ……
make cars from oldwires(金属线) and empty milk boxes."I like building things," said Alex. He wears jeans ……
phenomena that scientists cannot explain.wire // n. 金属线，电线Someone cut the telephone wire.complex //adj. 复杂 ……
no one can see them.The wires (金属线) used in braces today are also smaller and better than they used ……
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