Obtusatic acid
[化] 树花地衣酸
🧩 词语组成解析
🗣️ 情景例句
Work harder and practice more.
要更加努力地学习，更加勤奋地操练。
No sunshine but bath some shadow.
有明必有暗。
The cry had certainly come form one of the chimneys, but as there were so many of them, the fire fighters could not be certain which one it was.
喊叫声肯定是从烟囱里传出来的，然而，因为烟囱太多，消防队员无法确定到底是哪一个。