acknowledge

vt.承认；对(某人所做的事)表示感谢

ache, achievable, achieve, achieve one's goals, achievement, achiever, Achilles, Achilles' tendon, aching, achromatic, achy, acid, acid rain, acidic, acidify, acidity, acidly, acidosis, acidulated, acidulous, acknowledged, acknowledgement, acknowledgement (also acknowledgment), acknowledging, acknowledgment, acme, acne, acolyte, aconite, acorn, acoustic, acoustically, acoustics, acquaint, acquaintance, acquaintant, acquainted, acquaintence, acquiesce, acquiescence,