假如: if, in case, provided that, suppose that...
生命线: lifeline...
神经: nerve, mental state, (coll.) unhinged, nutjob...
类: kind, type, class, category, similar, like, to resemble...
发掘: to excavate, to explore, to unearth, to tap into...
而已: that's all, nothing more...
班级: class (group of students), grade (in school)...
搜索: to search (a place), to search (a database), to search for (sth)...
利益: benefit, (in sb's) interest...
马虎: careless, sloppy, negligent, skimpy...
