Sparkproof
a. 不發出閃光的,不發出火花的
??? 情景例句
He always seems such a happy guy.
他似乎永遠是個快樂的人。
My grandma is 40 years older than me.
我祖母比我大40歲。
It has always been a mystery to me who city dwellers, who appreciate all these things, obstinately pretend that they would prefer to live in the country.
城里人對這一切心里很明白，卻偏要執拗地裝出他們喜歡住在鄉村的樣子，這對我來說一直是個謎。