凱特的臉色這麼差，一定是生病了。

Kate must be sick, for she looks pale.

Source: Tatoeba

Sentence Composition

1 凱特 Kǎitè Kate (name)
=2 的 de
  1. of; ~'s (possessive particle)
  2. (used after an attribute when it modifies a noun)
  3. (used at the end of a declarative sentence for emphasis)
  4. (used after a noun, verb or adjective to form a nominal expression, as in 皮革的 pígéde "one made of leather" or 跑堂儿的 pǎotángrde "a waiter (literally, one who runs back and forth in a restaurant)" or 新的 xīnde "new one")
  5. also pr. dì or di in poetry and songs
=2 的 dī a taxi; a cab (abbr. for 的士 dīshì)
=2 的 dí really and truly
=2 的 dì (bound form) bull's-eye; target
3 臉色 liǎnsè
  1. complexion
  2. look
4 這麼 zhème
  1. so much
  2. this much
  3. how much?
  4. this way
  5. like this
=5 差 chā
  1. difference; discrepancy
  2. (math.) difference (amount remaining after a subtraction)
  3. (literary) a little; somewhat; slightly
=5 差 chà
  1. different
  2. wrong; mistaken
  3. to fall short; to lack
  4. not up to standard; inferior
  5. Taiwan pr. chā
=5 差 chāi
  1. to send (on an errand)
  2. (archaic) person sent on such an errand
  3. job; official post
=5 差 cī used in 参差 cēncī
=5 差 cuō
  1. (obsolete on its own in Standard Chinese) Original form of 搓 (cuō, “to rub with one's hands; to scrub; to twist”).
  2. Original form of 搓 (cuō, “to rub with one's hands; to scrub; to twist”).
=5 差 chài
  1. (obsolete on its own in Standard Chinese) Original form of 瘥 (chài, “to recover from an illness”).
  2. Original form of 瘥 (chài, “to recover from an illness”).
6 一定 yīdìng
  1. surely
  2. certainly
  3. necessarily
  4. fixed
  5. a certain (extent etc)
  6. given
  7. particular
  8. must
=7 是 shì
  1. to be (followed by substantives only)
  2. correct; right; true
  3. (respectful acknowledgement of a command) very well
  4. (adverb for emphatic assertion)
=7 是 shì variant of 是 shì
8 生病 shēngbìng to fall ill
=9 了 le
  1. (completed action marker)
  2. (modal particle indicating change of state, situation now)
  3. (modal particle intensifying preceding clause)
=9 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)
=9 了 liǎo
  1. (of eyes) bright
  2. clear-sighted
  3. to understand clearly
=9 了 liào unofficial variant of 瞭 liào