湯姆當時正在浴缸裡，突然感覺到了地震。

Tom was in the bathtub when he felt the earthquake.

Source: Tatoeba

Sentence Composition

1 湯姆 Tāngmǔ Tom (name)
=2 當時 dāngshí
  1. then
  2. at that time
  3. while
=2 當時 dàngshí
  1. at once
  2. right away
3 正在 zhèngzài to be in the process of (doing sth); to be currently ...-ing
4 浴缸 yùgāng bathtub
5 裡 lǐ
  1. lining
  2. interior
  3. inside
  4. internal
  5. also written 里 lǐ
6 突然 tūrán sudden; abrupt; unexpected
7 感覺到 gǎnjuédào
  1. to feel
  2. to sense
  3. to detect
  4. to perceive
  5. to become aware
=8 了 le
  1. (completed action marker)
  2. (modal particle indicating change of state, situation now)
  3. (modal particle intensifying preceding clause)
=8 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 无 wú or 不 bù) completely (not); entirely (not); (not) in the least
  4. to understand clearly (variant of 了 liǎo)
=8 了 liǎo
  1. (of eyes) bright
  2. clear-sighted
  3. to understand clearly
=8 了 liào unofficial variant of 瞭 liào
9 地震 dìzhèn earthquake