Naphthane
十氢化萘, 萘烷
🗣️ 情景例句
Hello, Alexandra.
你好 Alexandra。
The little boy left home for his first day at school.
那个小孩第一天离开家去上学。
because balloons can be a great danger to aircraft.
因为气球有可能给飞机造成极大的危险。