Efficatious
灵验(指疗效)
🗣️ 情景例句
I couldn't be more sure, Susan.
我再确定不过了， Susan。
Good-bye,Bill.
再见，比尔。
I smoked with concentration and pleasure as I was sure that this would be my last cigarette.
我聚精会神而又愉快地吸着这枝烟。因为我确信这是我最后一枝烟了。