/beɪs ||; bes/noun[C]
1 the lowest part of sth, especially the part on which it stands or at which it is fixed or connected to sth 底部;底座:
the base of a column/glass/box 圆柱;玻璃杯;箱子底部
I felt a terrible pain at the base of my spine. 我觉得脊柱底部很痛。
2 an idea, fact, etc from which sth develops or is made 起点;基础:
With these ingredients as a base, you can create all sorts of interesting dishes. 有了这些基本材料,你可以烹调出各种有趣的菜式。
The country needs a strong economic base. 该国需要一个强固的经济基础。
3 a place used as a centre from which activities are done or controlled (进行活动的)基地,根据地:
This hotel is an ideal base for touring the region. 到这地区游览,入住这家旅馆最理想。
4 a military centre from which the armed forces operate 军事基地;据点:
an army base 陆军基地
5 (in baseball) one of the four points that a runner must touch (棒球)垒
6 a chemical substance with a pH value of more than 7 碱;盐基
☞Look at acid and alkali. 参看 acid 及 alkali。
☞picture at pH 见 pH 插图