語法

yǔfǎ

Frequency star
  1. grammar, syntax (the rules and structure of a language)
  2. programming syntax (in computer science)

系統

xìtǒng

Frequency star
  1. system, systematic arrangement or organization
  2. department, faculty (in academic institutions)

演講

yǎnjiǎng

Frequency star
  1. speech, lecture, public speaking
  2. to give a speech, to lecture

保密

bǎomì

Frequency star
  1. to keep a secret, maintain confidentiality

她對保密不太好。