Neomagnal
铝镁锌耐蚀合金
🗣️ 情景例句
Much still remains to be done.
还有很多事要做。
We waved until the car was out of sight.
我们挥手直到汽车消失。
Some years ago an American psychiatrist named William Dement published experiments dealing with the recording of eye-movements during sleep.
前些年，美国一位精神病学者发表了一篇报告，报告中记录了眼球在睡眠时的活动情况。