Planetree
悬铃木属
🗣️ 情景例句
The first word is snow.
第一个字是"snow。
Scientists contribute to the well-being of mankind.
科学家为人类造福。
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。