应用思考-教育技术论坛
标题:
magnetic
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作者:
etthink
时间:
2023-1-17 20:02
标题:
magnetic
magnetic
The block becomes
magnetic
when the
current
is switched on.
通电时线圈即具有磁性。
magnet
In the 1990s the area became a
magnet
for new investment.
这个地区在20世纪90年代成了新的投资热点。
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