基础: foundation; base; basis牢固: firm; secure; fast; solid的: 4次方是 The fourth power of 2 i ...基础牢固: wellfounded牢固的基础: a firm foundation建立在磐石上, 基础牢固: be built on the rock在牢固的基础上: on a firm footing牢固的: deepset; earthfast; firm; locked-in; secure; substantial提供牢固的基础知识: to provide a solid foundation不牢固的: frail; loose; unstable加工牢固的: handing tight结构牢固的: well-set牢固的；坚定的: firm牢固的船: stout ship牢固的地: fast牢固的联系: good , firm bond松的、不牢固的: loose在学习上我们必须打下牢固的基础: we must lay a firm foundation in our study牢固的, 根深蒂固的: entrenched不牢固的结合: a rope of sand基础坚固的: well-founded坚固的基础: hardpan强固的基础: a solid foundation稳固的基础: secure foundation更重要，可观的，牢固的: substantial
