And the force caused by the magnetic field, I am never sure about the sign.

由磁场生成的力，我不确定其符号。

youdao

Because when I thought of him, of his voice, his hypnotic eyes, the magnetic force of his personality, I wanted nothing more than to be with him right now.

因为每当我想起他，想起他的声音，他能够催眠的眼睛，他极具吸引力的个人魅力的时候，我只想立刻和他在一起，除此之外便别无所求了。

youdao

I say "relatively" Because charged particles will experience a retarding force if they travel along magnetic field lines that converge.

我说“比较”，是因为当带电粒子沿著逐渐汇聚的磁力线方向运动时，会感受到一股迟滞力。

youdao