重點講解：

1. keep sth. under wraps 保密，秘而不宣（常指待日后宣布）；

The bids were submitted in May and were meant to have been kept under wraps until October.

標書5月份遞交，本欲10月份才予以公布K*+,,WIComD7。

2. plunge into （使）突然陷入；（使）突然遭受；

The country plunged deeper into recession.

那個國家進一步陷入經濟蕭條之中nSLs5Uab#M%^S|MK。

3. at war 戰爭；戰爭狀態；

They've been at war for the last fifteen years.

最近15年來他們一直在打仗&a*~9^DRo!。

4. speed up (使)(某一過程或活動)加快；

I had already taken steps to speed up a solution to the problem.

我已經采取措施加快解決該問題@(E6H6yLZJWJbHu%D|uE。