1. lay out

lay out本意表示“擺放”：

Grace laid out the knives and forks on the table.

格雷絲把刀叉擺放在桌子上。

把物件擺放好就引申成了“清晰地表達”：

The code of practice lays out very clearly what the duties of the registrar are.

行為規范清楚寫明了注冊員的責任。

2. lazybone

lazybonnes就是我們常說的“懶骨頭”。

除了lazy“懶”還可以說：

①idle

He's a very able student, he's just bone idle (= very lazy).

他是個能力很強的學生，只是太懶了。

②indolent

Those who revel in the Internet tend to lead an indolent life.

沉迷于網絡的人往往過著懶散的生活。

③slothful

He was not slothful: he had been busy all night.

他可沒偷懶：他忙了整整一夜。

④sluggish

A heavy lunch makes me sluggish in the afternoon.

豐盛的午餐使我一下午都懶得動彈。

⑤slack off

Do not slack off in your studies.

學習上不可懈怠。

（來源：滬江英語）