Retention form
[医] 固位形(牙洞)
🧩 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
My mother promised me a birthday party with a clown.
我妈妈答应给我办一个有小丑的生日派对。
The accident held the train up for an hour.
那事故使火车延误了一个小时。
Suddenly someone shouted.'It's two minutes past twelve! The clock has stopped!'
“已经12点零2分了！那钟已经停了！”