Magnetoflex
铜镍铁永磁合金
🗣️ 情景例句
Mary is not available at the moment.
Mary现在没空接电话
Janet winked at her boy friend.
珍妮向男朋友眨眨眼。
They had to edge their way along this, sometimes wading across shallow streams, or swimming across deep pools.
他们不得不侧着身子往前走，有时过浅溪，有时游过深潭。