Many reduced fares are hedged around with restrictions.是什么意思？

Many reduced fares are hedged around with restrictions.

很多优惠费率都带有限制条件。

many

adj. 许多，多的；pron. （与复数动词连用）大多数人；

例句
There are many people who still find the act of abortion abhorrent.
仍有很多人对堕胎行为表示厌恶。

reduced

adj. 减少的，简化的；v. 换算( reduce的过去式和过去分词 )，约束，使变为，使变弱；

例句
Those booking a block of seats get them at reduced rates.
团体订座可享受折扣价。

fares

n. 费( fare的名词复数 )，票价，乘客，食物；

例句
This has forced airlines to discount fares heavily in order to spur demand...
这迫使航空公司对机票大幅打折来刺激需求。

are

vi. （用于第二人称单复数现在时，第一、三人称复数现在时）是；n. 公亩（等于100平方米）；

例句
We are scared to abandon ourselves to our feelings in case we seem weak or out of control.
我们不敢放纵自己的情感，以免显得太过软弱或缺乏自制。

hedged

N-COUNT 树篱；VERB 防备，防范（尤指金钱损失）；N-COUNT 防护物;防备手段;防范措施；VERB 躲闪;回避；PHRASE 两面下注以防损失;骑墙；

例句
They hedged in answering various questions about the operation...
他们闪烁其词，不愿回答有关此次行动的各种问题。

around

adv. 大约，旋转，到处，四处，在周围；prep. 围绕，在附近，前后，左右，在…周围；

例句
He has never put an arm around his wife to accommodate photographers...
他从未为了迎合摄影师而搂住妻子。

with

prep. 和，跟，随着，关于，和…一致；

例句
A waiter entered with a tray...
侍者端着托盘进来了。

restrictions

n. 约束（ restriction的名词复数 ），管制，制约因素，带限制性的条件（或规则）；

例句
Argentina has lifted all restrictions on trade and visas are about to be abolished...
阿根廷已经取消所有贸易限制，签证制也将废止。