Sand core

sand [sænd]

n. 沙;沙滩;沙色; vt. 撒沙于;用砂纸磨光;

core [kɔ:]

n. 中心，核心，精髓;果心，果核;[地质学]地核;[计] 磁心; vt. 去（果）核，挖去…的果心;提取岩芯（样品）;

I know he will love the new photographs for your book.

我相信他会喜欢你为你的书所拍的这些新照片。

Take something by the best handle.

理解某事物，乘其好机会。

when they would be capable of providing information about traffic jams and suggesting alternative routes, when they would be used in hospitals to help doctors to diagnose illnesses, when they would relieve office workers and accountants of dull, repetitiv

计算机可以使办公室人员和会计免除那些枯燥、重复的劳动。