1.fold

v.n.

[definition]:折疊；皺、折

[example]:fold up phoebe's massage table.

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2.instrument

n.

[definition]:儀器、手段、工具、樂器

[example]:measuring instruments測量工具；musical instruments樂器.

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3.simplify

vt.

[definition]:使簡化

[example]:want to simplify their lives.

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4.compulsory

a.

[definition]:義務(wù)的

[example]:compulsory subjects.

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5.irritation

n.

[definition]:激怒、憤怒

[example]:tom couldn't hide his irritation that he failed the exam.

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回顧：1.fold 2.instrument 3.simplify 4.compulsory 5.irritation