重點講解:
1. invest in 投資;
It pays to invest in protective clothing.
在防護服上投資是值得的。
2. be ready to do sth. 準備好的;勝任的;
You must be ready to leave at a moment's notice.
你必須隨時準備出發。
3. because of 因為;由于;
We have had to raise our prices because of rising costs.
因為成本日益上漲,我們不得不提高價格。
4. ahead of 早于;在…之前;
Trading was very light ahead of yesterday's auction.
昨天拍賣之前的成交量很小。
n. 觀察,觀察力,評論
adj. 被設計用來