这些珍珠是真的，不是人造的。

These pearls are genuine, not artificial.

Source: Tatoeba

Sentence Composition

1 这些 zhèxiē these
2 珍珠 zhēnzhū (fig.) teardrop; tear

classifiers: 顆, 粒
=3 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)
=3 是 shì variant of 是 shì
=4 真的 zhēnde
  1. really; truly; indeed
  2. real; true; genuine
  3. (math.) proper
=4 真的 zhēndí
  1. (literary) true; real
  2. true; real
=5 不是 bùshì
  1. no
  2. is not
  3. not
=5 不是 bùshi fault; blame
6 人造 rénzào
  1. man-made
  2. artificial
  3. synthetic
=7 的 de
  1. of; ~'s (possessive particle)
  2. (used after an attribute when it modifies a noun)
  3. (used at the end of a declarative sentence for emphasis)
  4. (used after a noun, verb or adjective to form a nominal expression, as in 皮革的 pígéde "one made of leather" or 跑堂儿的 pǎotángrde "a waiter (literally, one who runs back and forth in a restaurant)" or 新的 xīnde "new one")
  5. also pr. dì or di in poetry and songs
=7 的 dī a taxi; a cab (abbr. for 的士 dīshì)
=7 的 dí really and truly
=7 的 dì (bound form) bull's-eye; target