翻訳　日本語　英語: 一次的

1 basal, base, cardinal, central, critical, decisive, elemental, fundamental, imperative, key, pivotal, polar, primal, primary, rudimentary, underlying, vital.

2 basal, base, primary, radical.

3 basal, basic, canonic, canonical, cardinal, central, elemental, fundamental, key, pivotal, polar, primal, primary, staple, underived.

4 basal, basic, cardinal, central, elemental, elementary, essential, fundamental, introductory, key, pivotal, polar, primal, primary, rudimentary, standard, stock, underlying.

5 basal, basic, cardinal, central, fundamental, key, primal, primary, profound.

6 basal, cardinal, central, chief, critical, fundamental, imperative, key, main, master, pivotal, polar, primal, primary, principal, vital.

7 basal, chief, elemental, elementary, main, master, primary, principal.

8 basal, chief, first, foremost, leading, main, major, master, preeminent, premier, primary, prime, principal, world-class.

9 basal, essential, first, foremost, leading, preeminent, primary, world-class.

10 basal, introductory, prefatorial, prefatory, primary.

1 about, above all, anyhow, anyway, anyways, approximately, around, at any rate, belike, close to, earlier, easily, first, first of all, first off, firstly, foremost, in all likelihood, in all probability, in any case, in any event, in the beginning, in the first place, just about, likely, more or less, most especially, most importantly, or so, originally, primarily, probably, roughly, some, to begin with, well.

2 chiefly, for the most part, in the first place, in the main, largely, mainly, mostly, primarily, principally.

3 chiefly, in the first place, in the main, mainly, predominantly, preponderantly, primarily, principally.