64．羽部 feather
积accumulate羽feather沉sink舟boat
Feathers are very light, but even they can combine to create a heavy enough load to sink a boat. 积羽沉舟describes the situation in which tiny things gather to create a mighty force.
【拼音】jī yǔ chén zhōu
【解释】羽毛虽小，积多了也能把船压沉。比喻细微的东西可以汇成巨大力量；也比喻坏事虽小，积累下去会产生严重后果。
【出处】《战国策·魏策一》：“臣闻积羽沉舟，群轻折轴。”
