acme

n. 顶点，极点

Achilles, Achilles' tendon, aching, achromatic, achy, acid, acid rain, acidic, acidify, acidity, acidly, acidosis, acidulated, acidulous, acknowledge, acknowledged, acknowledgement, acknowledgement (also acknowledgment), acknowledging, acknowledgment, acne, acolyte, aconite, acorn, acoustic, acoustically, acoustics, acquaint, acquaintance, acquaintant, acquainted, acquaintence, acquiesce, acquiescence, acquiescent, acquire, acquired, acquisition, acquisitive, acquisitively,