He's well up in all the latest developments.

他对所有的最新发展情况都了如指掌。

He clambered into his bunk and rolled himself well up in the blankets, as a swathe of barley is folded into the arms of the reaping machine.

河鼠爬进他的床铺，用毯子把自己紧紧裹住，就像一行大麦落进了收割机的怀抱一样。

His name is well up in the list.

他的名字排在名单的前面。

His name is well up in the list.

他的名字排在名单的最前面。

She is well up in english grammar .

她很精通英语语法。