Raphidioptera
蛇蛉目
🗣️ 情景例句
Keep right.
保持右方向。
He took a strong attitude towards her.
他对她采取强硬态度。
The Hubble telescope was launched into space by NASA on April 20,1990 at a cost of over a billion dollars.
哈勃望远镜于1990年4月20日由国家航空航天局发射升空，耗资10多亿美元。