under discussion 和in disscussion 的区别

under discussion under discussion or in discussion? under discussion 和in disscussion 的区别 请问是under discussion or in discussion? under discussion是什么意思 from what has been under discussion What he said just now nothing to do with question ___ discussion.A,on B,in C,under D,at in control 和under control区别? 帮俺做道题His ideas___the topic under discussion in the meeting.A relates toB relating toC related to D are related to 答案为么要选C呢? Some people know little about the topic under discussion. join in the discussion 还是join the discussion 介词填空：my father's car is ___ repair in the garage.His motherland is __ attack.His suggestion is __ discussion.答案说这些都填under,是不是under的意思不同?还是其他原因?感激不尽! in under 90 seconds是什么意思?in和under在这里各表示什么意思? 英语翻译everyone in the discussion对吗 in the sun和under the sun的区别 如何区别in the conditions 和under the conditions under the tree和in the tree用法的不同之处 under the snow和in the snow 的区别 in the silence和under the silence的区别是什么?