我一想到可能发生的事就满心欢喜。I go all tingly when I think of what might happen.我感到非常放松，无比欢喜。I felt a tremendous sense of relief and exultation.他们空欢喜一场.They have rejoiced too soon....
He's prone to flit between subjects with amazing ease.他往往会轻松自如地转换话题。When I called to get the money she owed me, I found she’d done a moonlight flit.我打电话向她催债时，发现她已经逃走了。Bats flit about in the twilight.蝙蝠在暮色中四处飞翔.Birds...
Sloping walls on the bulk of the building create an optical illusion.大楼主体的斜墙给人造成一种视错觉。The camera combines rugged reliability with unequalled optical performance and speed.这款相机既坚固耐用，又有超凡的光学性能和快门速度。These optical fibres may...
Postnatal scan of the right dystrophic kidney and the normal left kidney.产后扫查显示右肾营养不良,左肾正常....an ultrasound scan of the uterus.子宫超声波扫描The first scan was bad, so I had to do it again.第一次扫描不好, 所以我得重做。A special scanner will...