Aplanatic focus
[醫] 無球面像差焦點
?? 詞語組成解析
a. [物]等光程的,(透鏡)消球差的
focus
['fok?s]
vt.& vi. （使）集中，（使）聚集;調整（鏡頭，眼睛）焦點[焦距]以便看清;
vt. 調整（眼睛或者鏡頭的）焦距;集中（光束于）;聚焦，注視;集中注意力;
n. 焦點;影象的清晰度;（活動、注意力、興趣等的）中心;[醫]病灶，病癥;
focus, foci 表示”灶臺,火苗;中心點,中心”
??? 情景例句
Sure, that would be find with me.
當然，我對此沒有意見。
The doctor said it's just a slight infection, There's nothing to worry about.
醫生說只是輕微的感染，不需要擔心。
but belongs to the air, travelling it may be six thousand miles to and from its northern nesting home, feeding its flown young as it flies,
在空中十分自如，可以飛行6，000英里，可以飛往北方做窩的老家，再從老家飛回；一邊飛一邊喂養會飛的雛燕，甚至在頂風時也能在氣流中滑翔，似乎氣流在幫它前進。