No explanation was offered, still less an apology.

　　連個(gè)解釋都不給，就更不用說(shuō)道歉了。

　　He's ignorant about modern technology.

　　他對現代科技一無(wú)所知。

　　The library has a large biology section.

　　這個(gè)圖書(shū)館有大量的.生物學(xué)藏書(shū)。

　　Brief introduction of studies on insect Endocrinology and its achievements in China

　　昆蟲(chóng)內分泌研究簡(jiǎn)況和中國的成就