编辑推荐：
2010年PETS4试题分类及技巧
A month of Sundays
a long period of waiting, especially when someone is impatient for things to happen
EXAMPLE:
“It was a month of Sundays before the engineering department finally finished the design of our company’s ambitious new product.”
back to square one
An expression used to mean that it is necessary to stop whatever one has done on a new project and to start again completely.
EXAMPLE:
When our experimental design for a new solar automobile failed totally on the first day of testing, our engineering department knew it was back to square one.
Armed to the teeth
equipped with everything one needs for action
EXAMPLE:
The worried company president had full financial statements, sales reports, new product ideas, letters of praise from major customers, and proposals for increased growth when he arrived to make his annual report to the hostile board of directors; he was armed to the teeth.