乘人之危

chéngrénzhīwēi
to take advantage of sb's precarious position

CEDICT

Entry Composition

=1 乘 chéng
  1. to ride
  2. to mount
  3. to make use of
  4. to avail oneself of
  5. to take advantage of
  6. to multiply (math.)
  7. Buddhist sect or creed
=1 乘 chéng old variant of 乘 chéng
2 人 rén person; people

classifiers: 個, 位
3 之 zhī
  1. (possessive particle, literary equivalent of 的 de)
  2. him
  3. her
  4. it
4 危 wēi
  1. danger
  2. to endanger
  3. Taiwan pr. wéi