孔: hole, classifier for cave dwellings...
清静: quiet, peaceful and quiet...
水产品: aquatic products (including fish, crabs, seaweed etc)...
浮躁: fickle and impatient, restless, giddy, scatterbrained...
其中: among, in, included among these...
暗地里: secretly, inwardly, on the sly...
拓展: to expand (one's client base, outlook etc)...
假定: to assume, to suppose, supposed, so-called, assumption, hypothesis...
舒畅: happy, entirely free from worry...
赛车: auto race, cycle race, race car...
