Breakdown of yí gè rén wǎnshang chūqù hěn wēixiǎn.
Used when counting nouns or when specifying a specific instance of a noun.
There are also classifiers for people, for bound items such as books and magazines, for cups/glasses, etc.
The classifier 个 is a general one that can be used for any of these.
Questions & Answers about yí gè rén wǎnshang chūqù hěn wēixiǎn.
Because 一 changes tone depending on what follows.
In 一个人, the next syllable is 个 (gè), which is fourth tone, so 一 becomes second tone: yí.
A useful rule:
- yī when said alone or for emphasis
- yí before a fourth-tone syllable
- yì before most other tones
So:
- 一个 → yí ge
- 一天 → often yì tiān
Literally, 一个人 means one person. In this sentence, it most naturally means alone / by oneself.
So 一个人晚上出去很危险 is understood as:
- Going out at night alone is dangerous
- It is dangerous for one person to go out at night
This is very common in Mandarin: 一个人 can mean both one person and alone, depending on context.