ever before以前，从前
例句：Looking at the room filled with senior relatives, he felt greater pressure than ever before.
看见一屋的长亲，他感到了前所未有的压力。
2.People want to know where their food comes from and they're suspicious of intensive farming, let alone GM crops.
be suspicious of怀疑
例句：If you didn't have selfish motives, you wouldn't be suspicious and jealous of others.
自己没有私心，就不会猜忌别人。
let alone更别说
例句：It's difficult to fInd place to live In foreign land, let alone to fInd a job.
在一个陌生地方找住的地方已很难了,更遑论是找工作了。
相当于not to mention 更谈不上；更不必说
例句：This sentence is difficult to read, not to mention to memorize.
这句话不太好记，读起来有些别嘴。
3.I've been covering the GM food debate for more than ten years for the BBC and on the surface at least, the arguments don't seem to have moved on.
on the surface表面上，外表上，外观上
例句：The capsule had a safe impact on the surface of the moon.
太空梭在月球表面安全着陆。
Everything seemed calm on the surface.
表面上看起来一切似乎都很平静。
move on进行，进展
例句：Now, can we move on and discuss productivity.
好，让我们进行下一项，讨论生产率问题。
4.Where as we have candidate genes where we can change the heights of plants for instance and then obviously you could tell the GM variety from the non GM.
for instance例如，举例来说
例句：Small things can become big news, for instance if a person bites a dog.
小事情可以成为大新闻，比如人咬了狗。