Dilval
镍铁合金
🗣️ 情景例句
You can listen to BBC or VOA news if you want to improve your listening.
如果你想提高听力，你可以听英国广播电台或美国之音的新闻节目。
Children are the parents's riches.
子女是父母之财富。
Oh, good! He's coming down the ladder, now.
噢，好！现在他正从梯子上爬下来。