B horizon
B層；沉淀層
?? 詞語(yǔ)組成解析
horizon
[h?'ra?zn]
n. 地平線;范圍;界限;眼界;
??? 情景例句
Most of the building in this town are rather unattractive, but this church is an exception.
這個(gè)城市中大部分建筑都不太好看，但這座教堂是個(gè)例外。
It is never too late to learn.
什么時(shí)候?qū)W習(xí)都不晚。
From one's own front door to home or foreign hills or sands and back again, everything is to hand.
從自己的家門出發(fā)到國(guó)內(nèi)國(guó)外的山區(qū)或沙灘上露營(yíng)然后返回，一切都很便利。