掺沙子

Traditional form:

摻沙子

Pinyin (reading):

chānshāzi

Definitions:

• to mix in some sand (e.g. when making concrete)
• (fig.) to place outsiders into a monolithic group (to infiltrate or disrupt it etc)

Characters:

• 掺 - to mix, to blend, to adulterate
• 沙 - sand, gravel, pebbles; granulated
• 子 - son, child; seed, egg; fruit; small thing

Traditional characters:

• 摻 - to mix, to blend, to adulterate
• 沙 - sand, gravel, pebbles; granulated
• 子 - son, child; seed, egg; fruit; small thing