Retention analysis
[化] 残留分析; 保留分析; 保留分析法
🧩 词语组成解析
retention
[ri'tenʃən]
n. 保留;记忆力，保持力;滞留，扣留;闭尿;
🗣️ 情景例句
I've got extra time on my hands.
我有过多空闲时间。
When the police arrived, I was resting.
当警察来的时候，我在休息。
Historians have long been puzzled by dots, lines and symbols which have been engraved on walls, bones, and the ivory tusks of mammoths.
长期以来，历史学家一直对雕刻在墙壁上、骨头上、古代长毛象的象牙上的点、线和形形色色的符号感到困惑不解。