如果你不想,那你便没有这个必要去告诉汤姆。

You don't have to tell Tom if you don't want to.

Source: Tatoeba

Sentence Composition

1 如果 guǒ
  1. if
  2. in case
  3. in the event that
=2 you (informal, as opposed to courteous nín)
=2 you (Note: In Taiwan, is used to address females, but in mainland China, it is not commonly used. Instead, is used to address both males and females.)
3 不想 xiǎng unexpectedly; to one's surprise
=4 surname Na
=4 Nuó surname Nuo
=4 variant of
=4
  1. (specifier) that; the; those (colloquial pr. nèi)
  2. (pronoun) that (referring to persons, things or situations)
  3. then (in that case)
=4 nuó
  1. (archaic) many
  2. beautiful
  3. how
  4. old variant of nuó
=5 you (informal, as opposed to courteous nín)
=5 you (Note: In Taiwan, is used to address females, but in mainland China, it is not commonly used. Instead, is used to address both males and females.)
=6 便 biàn
  1. plain
  2. informal
  3. suitable
  4. convenient
  5. opportune
  6. to urinate or defecate
  7. equivalent to jiù: then
  8. in that case
  9. even if
  10. soon afterwards
=6 便 pián
  1. used in 便宜 piányi
  2. used in 便便 piánpián
  3. used in 便嬛 piánxuān
7 没有 méiyǒu
  1. haven't
  2. hasn't
  3. doesn't exist
  4. to not have
  5. to not be
8 这个 zhège
  1. (pronoun) this
  2. (adjective) this
9 必要 yào
  1. necessary
  2. essential
  3. indispensable
  4. required
10
  1. to go
  2. to go to (a place)
  3. (of a time etc) last
  4. just passed
  5. to send
  6. to remove
  7. to get rid of
  8. to reduce
  9. to be apart from in space or time
  10. to die (euphemism)
  11. to play (a part)
  12. (when used either before or after a verb) to go in order to do sth
  13. (after a verb of motion indicates movement away from the speaker)
  14. (used after certain verbs to indicate detachment or separation)
=11 告诉 gào to press charges; to file a complaint
=11 告诉 gàosu to tell; to inform; to let know
12 汤姆 Tāng Tom (name)