到了那兒之後跟我說一聲兒。

Drop me a line as soon as you get there.

Source: Tatoeba

Sentence Composition

1 到了 dàoliǎo
  1. at last
  2. finally
  3. in the end
2 那兒 nàr there
3 之後 zhīhòu
  1. after; behind
  2. (at the beginning of a sentence) afterwards; since then
4 跟 gēn
  1. heel
  2. to follow closely
  3. to go with
  4. (of a woman) to marry sb
  5. with
  6. compared with
  7. to
  8. towards
  9. and (joining two nouns)
5 我說 wǒshuō
  1. I wondered that and now it makes sense that...
  2. Used other than figuratively or idiomatically: see 我, 說 /说.
6 一聲 yīshēng first tone in Mandarin (high, level tone)
=7 兒 ér
  1. child
  2. son
=7 兒 r
  1. non-syllabic diminutive suffix
  2. retroflex final