当时人们就知道，地球是个球体。

Then people knew, that the world is a sphere.

Source: Tatoeba

Sentence Composition

=1 当时 dāngshí
  1. then
  2. at that time
  3. while
=1 当时 dàngshí
  1. at once
  2. right away
2 人们 rénmen people
3 就 jiù
  1. (after a suppositional clause) in that case; then
  2. (after a clause of action) as soon as; immediately after
  3. (same as 就是 jiùshì) merely; nothing else but; simply; just; precisely; exactly
  4. only; as little as
  5. as much as; as many as
  6. to approach; to move towards
  7. to undertake; to engage in
  8. (often followed by 著 zhe) taking advantage of
  9. (of food) to go with
  10. with regard to; concerning
  11. (pattern: 就 jiù ... 也 yě ...) even if ... still ...
  12. (pattern: 不 bù ... 就 jiù ...) if not ... then must be ...
4 知道 zhīdào
  1. to know; to become aware of
  2. also pr. zhīdao
=5 地球 dìqiú the earth
=5 地球 Dìqiú
  1. (astronomy) the Earth
  2. the Earth
=6 是 shì
  1. to be (followed by substantives only)
  2. correct; right; true
  3. (respectful acknowledgement of a command) very well
  4. (adverb for emphatic assertion)
=6 是 shì variant of 是 shì
=7 个 gě used in 自個兒 zìgěr
=7 个 gè
  1. (classifier used before a noun that has no specific classifier)
  2. (bound form) individual
=7 个 gè variant of 個 gè
8 球体 qiútǐ spheroid