Picenic acid
[化] ┧酸
🧩 词语组成解析
🗣️ 情景例句
How many people will you be bringing?
你约了多少人来？
To worry about tomorrow is to be unhappy today.
担心明天，今天就不愉快了。
But people who are cut off not only from foreign tourists, but even from their own countrymen can be hostile to travellers.
但是，那些不但与外国旅游者隔绝，而且与本国同胞隔绝的人们有可能对游客抱有敌意。