Questions & Answers about zhè gè dōngxi bú tài guì, wǒ xiān shìshi.
Chinese normally uses the pattern demonstrative + measure word + noun: 这 + 个 + 东西 = “this thing.”
- Saying 这个东西 is the safest, most neutral option.
- In casual speech you can drop the measure word and say 这东西; it’s common and natural.
- Don’t say 这件东西 unless you really mean “this piece/item” in a stylistic or specific context; for everyday speech, use 个 with 东西.
- You can also hear the colloquial pronunciation zhèi ge for 这个.
Tone sandhi: 不 (bù) changes to the second tone bú when it comes directly before a fourth-tone syllable.
- Here it’s before 太 (tài) (4th tone), so you say bú tài.
- More examples: bú shì (不是), bú duì (不对).
- Before 1st/2nd/3rd tones, 不 stays bù.
When 东西 means “thing/stuff,” it’s pronounced dōngxi and the second syllable is a neutral tone (light).
When it literally means “east and west,” both syllables keep their tones: dōng xī.