重點講解:
1. at least (數量)至少,不少于;
例句:He has been there at least twice.
他至少去過那兒兩次 。
2. to no avail 毫無用處;沒效果;
例句:His efforts were to no avail.
他徒勞無功 。
3. for the first time 首次;第一次;
例句:Ten years ago, I went to the tropics for the first time.
十年前我第一次到熱帶去 。
4. according to 據…所說;按…所載;
例句:According to the old legend, Romulus was the founder of Rome.
按照古老的傳說,羅穆盧斯是古羅馬的建國者 。
adj. 未經解釋的;未經說明的;不清楚的