✔ 最佳答案
英文發音雖然係有規則,但例外的也很多。例如,gh這個音有時發音 有時是不發的。It all depends on the patterns and I don't think there is any explanation.
(1) 不發音: light, right, sight, tight, fight
sigh, high, thigh
though, although, dough
fought, bought
taught, caught
(2) 發音 (f): rough, tough, cough
(3) 發音(g): ghost