sm smile 微笑 [Card #6; 字卡第6張: 第1個單字, 字母組合發音 sm]

Some more examples（更多例字）：smash, smack, small, smart, smell, smear, smith, smile, smite, smirk, besmirch, smog, smock, smother, smoke, smolder, smooch, smooth, smoothie, smug, smuggle, smudge, smut