介绍： 词根serv = save, keep 保存
1.reserve [rɪ'zɜːv]
v. 保留，预定
n. 储备（金、物）
These seats are reserved for the elderly and women with babies.
这些座位是为老年人和带婴儿的女性预留的。

2.preserve [prɪ'zɜːv]
vt. 保存，保护
preservation n.
to preserve the environment 保护环境

3.conserve [kən'sɜːv]
vt. 保护，...

介绍： 词根serv = save, keep 保存
1.reserve [rɪ'zɜːv]
v. 保留，预定
n. 储备（金、物）
These seats are reserved for the elderly and women with babies.
这些座位是为老年人和带婴儿的女性预留的。

2.preserve [prɪ'zɜːv]
vt. 保存，保护
preservation n.
to preserve the environment 保护环境

3.conserve [kən'sɜːv]
vt. 保护，节省
conserve energy 节省能源
natural conservation area 自然保护区

4.observe [əb'zɜːv]
v. 观察；遵守
The role of scientists is to observe and describe the world.
科学家的角色是观察和描述这个世界。
observe traffic rules 遵守交通规则

5.deserve [dɪ'zɜːv]
v. 应得，应受，值得
After all that hard work, you deserve a holiday.
辛苦工作之后你该有个假期。

6.amuse [ə'mjuːz]
vt. 使娱乐，使发笑
We amused ourselves by watching the passers-by.
我们观察来往的行人自娱自乐。

7.leisure ['leʒə]
n. 空闲，闲暇；休闲
leisure activities 休闲活动
Most people only have a limited amount of leisure time.
大多数人只有有限的空闲时间。

8.idle ['aɪd(ə)l]
adj. 闲置的；不工作的；懒惰的
v. 闲置；虚度
They idled their time away in the pub.
他们在酒吧里消磨时光。
idleness n. 懒惰，闲散；失业

9.spare [speə]
adj. 多余的；备用的
v. 抽出，匀出；饶恕
spare time 空闲时间
spare parts 备品，备件
We will spare no effort to find out who did this.
我们会不遗余力，一定查出是谁做了这件事。

10.quest [kwest]
n. 探索；寻求；追求
Nothing will stop them in their quest for truth.
没有什么可以阻止他们对真理的追求。