shelf

n. shoal,sandbank 浅滩，沙洲。
△3H.VI.5.4.21:“We will not from(i.e. away from,leave) the helm to sit and weep,/ But keep our course,though the rough wind say no,/ From shelves and rocks that threaten up withwrack.”我们决不会离开船舵，坐下哭泣，而要坚持我们的航程，不顾狂风怒吼，绕过那些会使船只沉没的险滩暗礁而前进。

shelf[ʃelf]

n.架子，搁板，楼座，跳远沙台
◇off the shelf复活
on the shelf束之高阁，在搁板上
‖ shelf life保存限期
shelf time保管时间top shelf顶层楼座