Vacancy cluster
[化] 空位簇
🧩 词语组成解析
cluster
['klʌstɚ]
n. 丛;簇，串;群;[语言]辅音群;
vi. 丛生;群聚;
vt. 使密集，使聚集;
🗣️ 情景例句
First you must find out the clause of the quality problems and furnish sufficient evidence.
首先你的查查有关质量问题的条款，并提供足够的证据。
What is the total circulation of this publication.
这家刊物总发行量多少？
Her mother died when she was eight years old.
她8岁时母亲就去世了。