湯姆正在哀悼。

Tom is in mourning.

Source: Tatoeba

Sentence Composition

1 湯姆 Tāngmǔ Tom (name)
2 正在 zhèngzài to be in the process of (doing sth); to be currently ...-ing
3 哀悼 āidào
  1. to grieve over sb's death
  2. to lament sb's death
  3. mourning