retention
n[U, sing]
(fml 文)1 possession or use of sth 具有; 具備; 享有; 享用
retention of one's rights, privileges, etc 權利、 特權等的享有
the full retention of one's (mental) faculties (心智)能力的健全.
2 ability to remember things 記憶力; 記性
her limited/extraordinary powers of retention 她那有限的[非凡的]記憶力
show an amazing retention of facts, details, childhood impressions, etc 顯示出對事實、 細節、 兒時情景等的驚人記憶力.
3 action of holding sth in position or containing it 擋住; 攔阻; 保持; 保留; 容納
the retention of flood waters, crowds 攔住洪水、 人群
suffer from retention of urine, ie failure to pass it out from the bladder 患閉尿癥(不能排尿).