保证: guarantee, to guarantee, to ensure, to safeguard, to pledge...
概括: to summarize, to generalize, briefly...
庆祝: to celebrate...
评估: to evaluate, to assess, assessment, evaluation...
用处: usefulness...
自满: complacent, self-satisfied...
其: his, her, its, their, that, such, it (refers to sth preceding it)...
密集: concentrated, crowded together, intensive, compressed...
运动员: athlete...
冰箱: icebox, freezer cabinet, refrigerator...
