No explanation was offered, still less an apology.
连个解释都不给，就更不用说道歉了。
He's ignorant about modern technology.
他对现代科技一无所知。
The library has a large biology section.
这个图书馆有大量的`.生物学藏书。
Brief introduction of studies on insect Endocrinology and its achievements in China
昆虫内分泌研究简况和中国的成就