detect vt. 发觉，发现
She detected the odor of gas in the room. We detected the robbers when they entered the bank.
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main adj. 主要的 main building main street main sentence main idea main不能与人连用
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• steal stole
• steal sth. • steal sth. from sb. •偷钻石 steal the diamonds
② vt. 等待，期待，盼望（心理上的等待）
They are expecting guests tonight. He expected her to go with him. I expect you to write back.
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airport port 港口 at the airport field 田野 airfield 停机坪 on the airfield
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airport 飞机场
the main building 航站楼，候机楼
stolen
•小偷们将试图偷走钻石 That thieves would try to steal the diamonds. He has stolen away Mary’s heart. He stole into the room. vi. 偷偷地行动，悄悄靠近
不一定贵,但是很有精神上的价值，有纪念意义的， 带有感情色彩的
precious photo/ gift / time
expensive adj. 价格昂贵的
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-less 表否定：
=invaluable
worthless adj. 没有价值的
Was I really worthless to him?
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precious, valuable, invaluable, valueless priceless, worthless
A place for passengers
airfield 停机坪,飞机起落的场 地
A place for planes
the Customs House 海关
A place for luggage
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Lesson 7 Too late
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detective(job)
a private detective Sherlock Holmes detective story
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priceless adj. 没有价格的,ove, family, genuine companionship, dignity, honor, and life are priceless.
valueless adj. 没有价值, 不足道的
It is a valueless book for me.
③ vt. 认为，猜想（一般用于口语）
I expect so./I think so. 我希望如此
I expect you’ve heard the news.
④ vt.&vi. 怀孕 Mary is expecting again.
We all know she's expecting a baby
珍贵的 有价值的 无价之宝 毫无价值的
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parcel n. 包裹 a parcel of books The post office lost my parcel. it's awfully annoying.
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diamond
precious stone 宝石 crystal 水晶 jade 玉,翡翠
diamond ring
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valuable adj.有价值的
He bought me a valuable diamond ring as a birthday present.
n.&v. 价值
强调的是事物本身的价值高
precious adj. 珍贵的
钻石婚 diamond wedding
60 anniversary
金婚 golden wedding
50 anniversary
银婚 silver wedding
25 anniversary
纸婚 paper wedding
1 anniversary
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expect ① vt.&vi. 预计，预料
Jim has passed mathematics as his teacher expected. I didn't expect to find you here. I expect a storm.