★ detain（vt）阻止某人离开或做某事；耽搁，延误
She was detained in the office by unexpected callers。
有些临时访客把她耽搁到办公室里了。
Find the bald guy with the sling and detain him!
找到那个缠着绷带的光头男人并扣留他！
Now, if they've violated any kind of Arizona law, any kind of Arizona statute, committed any crime, then by law I can detain them.
我没办法合法拘留他们。现在，如果他们违反任何一项亚利桑那州的法律、法规，或是犯了任何罪行，我都可以依法关押他们。
◎ detainee（n）被拘留者
★ retard（vt）使某物放缓或延迟；阻止某人某事物的进步和发展
retard the spark of an engine
使点火延迟
Lack of sunlight will retard the growth of most plants.
缺乏阳光会妨碍大多数植物的生长。
The experiment is said to be the first technique shown to retard aging in primates.
这项实验据称是首个被证明可以延迟灵长类动物衰老的方法。
Their interpretation: Eating "lite" may retard the aging process in the brain.
所以：清淡饮食有可能延缓大脑衰老的过程。
◎ retarded（adj）身体或（尤指）精神发育迟缓的，智力迟钝的