凱教授已研究昆蟲四十年。

Professor Kai has been studying insects for forty years.

Source: Tatoeba

Sentence Composition

=1 凱 Kǎi surname Kai
=1 凱 kǎi
  1. (bound form) triumphal music
  2. (Tw) (coll.) generous with money; lavish in spending
  3. chi (Greek letter Χχ)
2 教授 jiàoshòu
  1. professor
  2. to instruct
  3. to lecture on

classifiers: 個, 位
3 已 yǐ
  1. already
  2. to stop
  3. then
  4. afterwards
4 研究 yánjiū
  1. research
  2. a study
  3. to research
  4. to look into

classifier: 項
5 昆蟲 kūnchóng insect

classifiers: 隻, 群, 堆
6 四十 sìshí
  1. forty
  2. 40
=7 年 Nián surname Nian
=7 年 nián year

classifier: 個
=7 年 nián
  1. grain
  2. harvest (old)
  3. variant of 年 nián