Noncyclic crown ether
[化] 非环状冠醚
🧩 词语组成解析
不定期的, 不经常的, 非周期[循环]的
crown
[kraʊn]
n. 王冠;花冠（有时象征胜利）;王权;（某物的）顶部;
vt. （尤指通过增添成就、成功等）使圆满;为…加冕;使圆满完成;给…以荣誉;
vi. 露顶;
ether
['i:θə]
n. <化>醚;the ether 苍穹;苍天;太空;
🗣️ 情景例句
What did you tell Grandpa?
那你是如何对爷爷说的呢？
A bad workman quarrels with his tools.
拙匠常怨工具差（人笨怨刀钝）。
but ten months later, she received a letter from a girl in Holland.
但10个月以后，她收到了荷兰一位姑娘的来信。