汤姆胖了。

Tom has gained weight.

Tom gained weight.

Tom got fatter.

Tom got fat.

Tom has been gaining weight.

Source: Tatoeba

Sentence Composition

1 汤姆 Tāngmǔ Tom (name)
=2 胖 pán
  1. healthy
  2. at ease
=2 胖 pàng
  1. fat
  2. plump
=3 了 le
  1. (completed action marker)
  2. (modal particle indicating change of state, situation now)
  3. (modal particle intensifying preceding clause)
=3 了 liǎo
  1. to finish
  2. (used with 得 dé or 不 bù after a verb to express (im)possibility, as in 忘不了 wàngbuliǎo "cannot forget")
  3. (literary) (usually followed by a negative such as 無 wú or 不 bù) completely (not); entirely (not); (not) in the least
  4. to understand clearly (variant of 瞭 liǎo)
=3 了 liǎo
  1. (of eyes) bright
  2. clear-sighted
  3. to understand clearly
=3 了 liào unofficial variant of 瞭 liào