随着积累，我会随时更新

1. The learner may find it difficult to place the stress in multi-syllable words. e.g.:

university / university

...

...

2. words with variable stress

the same words which adopt different stress to show different meaning, such as:

object record ...

3 some words have strong and weak forms:

a

an

and

as:   /æz/ ;  /əz/

can: strong /kæn/ weak /kən/

from: /frɒm/; /frəm/

the

of