驶出

creams off───撇取奶油；撇去乳油

seals off───封闭；把…封锁起来

shears off───剪断；切掉

tears off───撕下；扯掉

bears off───赢得；驶离

clears off───摆脱；清除；走开

heads off───阻止；转移方向

Boiling water gives off steams.───热水披发出蒸汽。

This heat-transfer medium (Freon) absorbs heat from a low grade source (that is environment: air, river, drain, etc), steams off and goes into air pump 14.───传热介质(氟利昂)吸收热量从低品位的来源(即环境：空气，河流，下水道，等等)，以及蒸汽和空气进入泵14。