英语词汇be well up on (或 in)怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	be well up on (或 in)
释义	be well up on (或 in) 对某事了解得很详尽
随便看	lamellately lamellation lamellations lamelli- lamellibranch lamellibranches lamellibranchiate lamellibranchs lamellicorn lamellicorns lamelliform lamellipodial lamellipodium lamellirostral lamellirostral,lamellirostrate lamellirostrate lamellose lamellosities lamellosity lamellosity lamely lamely lameness lameness lameness'

英汉双解词典包含548777条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。