This is from https://www.bilibili.com/video/BV1Y14y1w7RM/?spm_id_from=333.1007.top_right_bar_window_history.content.click
Let’s compare some words that begin with the letter a.
If the syllable is stressed, the a has an /æ/ sound; Otherwise, there is an /ə/ sound.
- Stressed and reduced a
| Stressed | Reduced |
|---|---|
| absent | about |
| after | afford |
| address(noun) | address(verb) |
| adverb | admit |
| allergy | allergic |
| ally | allow |
| angry | annoyed |
| apple | apply |
Let’s compare some words that begin with the letter e.
If the syllable is stressed, the e has an /e/ sound; Otherwise, there is an /ɪ/ sound.
| Stressed | Reduced |
|---|---|
| envy | enjoy |
| edit | edition |
| extra | exact |
| enter | enough |
| enemy | explode |
| episode | escape |
| empty | employ |
Let’s compare some words that begin with the letter con.
If the syllable is stressed, the con has an /kɑn/ sound; Otherwise, there is an /kən/ sound.
| Stressed | Reduced |
|---|---|
| concert | concern |
| contact | conclude |
| conflict | confess |
| conscious | confirm |
| contrary | continue |
| concept | confuse |
| confident | convince |
| contract | connect |
Let’s compare some words that begin with the letter pro.
If the syllable is stressed, the pro has an /proʊ/ sound; Otherwise, there is an /prə/ sound.
| Stressed | Reduced |
|---|---|
| product | produce |
| process | proceed |
| problem | procedure |
| profit | professor |
| progress | professional |
| probably | pronounce |