aha
interj. 啊哈

ahead
adv. 在前; 預先; 向前; 領先

ahead of one's time
比所處時代先進

ahead of schedule
提前

ahead of time
提前; 提早

ahem
n. 啊哼!嗯哼!呃哼!

ahems
n. 啊哼!嗯哼!呃哼!

ahoy
interj. 喂!啊嘿!啊呵!