Scure
[经] 保证; 安全的
🗣️ 情景例句
Keep a small English dictionary with you at all time.
随身携带一本小英文字典。
How long is the ticket valid?
这车票有效期多久？
At the same time, however, insects are strangely fascinating.
同时，不知为什么昆虫又是迷人的。