動詞 curtail:

1. place restrictions on
   同義詞：restrict, curb, cut back
2. terminate or abbreviate before its intended or proper end or its full extent
   同義詞：clip, cut short

1. John's father curtail his allowance.
   約翰的父親減少了他的零用錢。
2. Illness has curtailed her sporting activities.
   她因病而減少了體育活動。
3. We must try to curtail our spending.
   我們必須盡力縮減開支。
4. The President had to curtail his visit.
   總統(tǒng)不得不縮短他的訪問日期。

cur.tail

v.tr.（及物動詞）
cur.tailed,cur.tail.ing,cur.tails
To cut short; abbreviate.See Synonyms at shorten
截短；省略參見 shorten

來源：
Middle English curtailen [to restrict]
中古英語 curtailen [限制]
probably blend of Old French courtauld [docked] * see curtal
可能混合了 古法語 courtauld [剪短的] *參見 curtal
Middle English taillen [to cut] from Old French tailler * see tailor
中古英語 taillen [割] 源自 古法語 tailler *參見 tailor

【引伸】
curtail.er
n.（名詞）
curtail.ment
n.（名詞）