Ultrapas
三聚氫胺(甲醛)樹脂
??? 情景例句
It's mostly young people who take part.
參加活動的絕大多數是年青人。
When an opportunity is neglected,it never comes back to you.
機不可失，時不再來；機會一過，永不再來。
Few things could be more impressive than the peace that descends on deserted city streets at weekends when the thousands that travel to work every day are tucked away in their homes in the country.
周末，當成千上萬進城上班的人回到他們的鄉間寓所之后，空曠的街市籠罩著一種寧靜氣氛，沒有什么能比此時的寧靜更令人難忘了。