excel at的用法和樣例：
例句
- We finally got at a ledge of rock near the summit.
我們最后到達了靠近峰頂的一塊突出的巖崖。 - Mrs Jones was much in evidence at the party.
瓊斯夫人在晚會(huì )上很突出。 - He's good at volleying it back to his opponent.
他擅長(cháng)于截擊球來(lái)反擊他的對手。 - She is good at making up stories.
她擅長(cháng)于虛構故事。
