rust
n.锈，使生锈 vi.生锈；荒废
The old bike is covered with a lot of rust.
这辆老旧的脚踏车上生满了锈。
The lock on this old safe is rusted. We will have to saw it open.
旧保险箱上的锁已经生锈了。我们必须锯开它。
Iron and gold are different because iron rusts and gold does not.
铁和黄金不同，因为铁会生锈，而黄金不会。
Don't let your talent rust. As they say, use it or lose it.
别让你的才华荒废了。诚如大家说的，要好好利用它，否则就会失去它。
rusty
a. 生锈的；生疏的
We can tell by the rusty iron gate that this house has been empty for years.
我们从生锈的铁门可以看出这栋房子已经空了好多年。
My Japanese is getting rusty, so I'll have to polish it up a little before I fly to Tokyo next month.
我的日语渐渐生疏了，因此下个月我飞到东京前得先复习—下。
sack
n.大袋子 vt.开除（某人）
I'm so tired that I think I'll just hit the sack.
我好累，所以我想干脆去睡觉。
Eric got the sack for stealing money from the company.=Eric was sacked for stealing money from the company. =Eric was fired for stealing money from the company.
艾瑞克因为偷公司的钱被开除了
shampoo
n.洗发精（物质名词,不可数）
You should buy a special kind of shampoo for damaged hair.
你应该买受损发质专用的洗发精。
This brand of shampoo can help get rid of your dandruff.
这种牌子的洗发精可帮助你去除头皮屑。
shepherd
n. 牧羊人
The young shepherd led a flock of sheep up the hill.
那个年轻的牧羊人把一群羊带到山坡上。
slippery
a.滑溜溜的
Be careful! The sidewalk is slippery.
小心！人行道很滑。
sorrow
n.悲伤
To our great sorrow, the doctor said Edward has only another 5 months to live.
令我们很难过的是，医生说爱德华只剩5个月可活。
spy
n.间谍 vi.侦察（与介词on并用）
The spy was caught providing information to the enemy.
这名间谍在提供情报给敌方时被逮到。
Celebrities always worry about people spying on them.
名人们总是担心着有人在监视他们。
scout
vi.侦査，寻找 n.童子军
I'm scouting around for a school that has a good English learning program.=I'm looking around for a school that has a good English learning program.
我在找寻有优良英语学习课程的学校。
The boy scouts are taught to do a good deed a day.
这些童子军被教导要日行一善。
stab
vt.刺
The knight drew his sword and stabbed the villain in the chest.
骑士亮出剑，刺进恶棍的胸口。
I can't believe my best friend would stab me in the back.
我真不敢相信我最要好的朋友会在背后中伤我。