Alkyl
n. 烷基, 烃基\\na. 烷基的, 烃基的
🗣️ 情景例句
It is special. Happy anniversary.
确实很特别。结婚周年快乐！
Can you help me out? I'm trying to find a post office.
你能帮我个忙吗？我想找个邮局。
a flight attendant told us to keep calm and to get off the plane quietly as soon as it had touched down.
一位空中乘务员告诉我们要保持镇静，待飞机一着陆，就马上不声不响地离开飞机。