No explanation was offered, still less an apology.

　　連個解釋都不給，就更不用說道歉了。

　　He's ignorant about modern technology.

　　他對現(xiàn)代科技一無所知。

　　The library has a large biology section.

　　這個圖書館有大量的.生物學(xué)藏書。

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

　　昆蟲內(nèi)分泌研究簡況和中國的成就