conserve:
vt. 保存将…做成蜜饯使守恒
n. 果酱蜜饯
I just want to conserve the old house.
我只是想要保留我们的老房子。
perserve:
持之以恒
And the practice of this kind of detail needs to perservenamely it is good to go insisting to do it do it.
而这种细节的做法就是需要持之以恒的去坚持把它做好。
reserve:
v. 预订（座位等）储备拥有（某种权利）留出（一部分稍后使用）用于（特定场合）暂不作（判断或决定）把……专门留给弥撒后保留部分圣餐
n. 储备（量）自然保护区居住地预备队预备役部队缄默保留意见储备金（拍卖中的）底价（印染中的）防染本色区I'll reserve a table for five.
我要预订一个5人的餐位。
You can reserve seats over the telephone.
你可以打电话预订座位。
I'd like to reserve a table for three for eight o'clock.
我想预订八点钟供三人用餐的桌位。
The Federal Reserve lowered interest rates by half a point.
联邦储备委员会将利率降低了0.5个百分点。
The reserve covers an area of some 1 140 square kilometres.
保护区占地面积大约1 140平方公里。
