eer deer 鹿 [Card #21; 字卡第21張: 第4個單字, 字母組合發音 eer]

Some more examples（更多例字）：beer, jeer, peer, seer, veer, deer, reindeer, commandeer, cheer, sheer, queer, sneer, steer, engineer, auctioneer, mountaineer, pioneer, veneer, career, volunteer