A compass needle points north.
罗盘指针指向北方。
The compass needle was pointing north.
罗盘指针指向北方。
A compass needle always points north.
罗盘指针总是指向北方。
A compass needle points to the north.
罗盘的指针永远指向北方。
A compass needle always points north.
一个指南针的指针总是指着北面。
A compass needle always points to the north.
罗盘的指针总是指向北方。
You're as true as a compass needle, pointing to your goal no matter what happens.
你就象一个指南针，风雨无阻地指向你的目标。
To get to the North Pole, or true north, just following your compass needle won't work.
想去北极，或者是要找到正北向，单纯依靠指南针是不会奏效的。
While the magnetic field surrounding a current-carrying wire is indeed interesting, it is quite weak for common amounts of current, able to deflect a compass needle and not much more.
当磁场围绕着带电导线时会有很有趣的现象发生，通常所用的电流产生的磁场相当的弱，最多可以使指南针的指针发生偏转。
While the magnetic field surrounding a current-carrying wire is indeed interesting, it is quite weak for common amounts of current, able to deflect a compass needle and not much more.
当磁场围绕着带电导线时会有很有趣的现象发生，通常所用的电流产生的磁场相当的弱，最多可以使指南针的指针发生偏转。
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