-----------------------------------
弱い， よわい
1. weak, frail, delicate, tender, unskilled, weak (wine)
弱的、虚弱的，脆弱的，娇弱的，柔嫩的，不熟练的，淡的(酒)
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题；表示与另一选项（无论是否明确提及）形成对比；表示强调
