Quality assurance
[计] 质量保证\\n[化] 质量保证
🧩 词语组成解析
assurance
[ə'ʃʊrəns]
n. 保证，担保;（人寿）保险;确信;厚脸皮，无耻;
as 一再 + sur 肯定 + ance 表名词，状态、 、行为 → n. 保证 ;把握 ;(人寿)保险
🗣️ 情景例句
He is liked very much because of his courtesy.
他由于彬彬有礼而颇获好感。
I thought so, too.
我也这样以为。
It's about a time when there were black slaves in North America. It's about their fight for freedom.
（它）讲的是有一段时期，北美洲存在黑奴。影片讲述他们为自由而斗争的情况。