Machine-hour standards
[经] 机器小时标准
🧩 词语组成解析
hour
['aʊɚ]
n. 小时，钟头;时间，时刻;固定时间;课时;
n. 标准；规格（standard的复数）
🗣️ 情景例句
since her mother died.
因为她妈妈去世了。
Buyers always pay great attention to packing.
买方通常很注意包装。
Her mother died when she was eight years old.
她8岁时母亲就去世了。