不想做是原因；不能做仅仅是接口。

Not wanting to is the reason; not being able to is just an excuse.

Source: Tatoeba

Sentence Composition

1 不想 bùxiǎng unexpectedly; to one's surprise
2 做 zuò
  1. to make; to produce
  2. to write; to compose
  3. to do; to engage in; to hold (a party etc)
  4. (of a person) to be (an intermediary, a good student etc); to become (husband and wife, friends etc)
  5. (of a thing) to serve as; to be used for
  6. to assume (an air or manner)
=3 是 shì
  1. to be (followed by substantives only)
  2. correct; right; true
  3. (respectful acknowledgement of a command) very well
  4. (adverb for emphatic assertion)
=3 是 shì variant of 是 shì
4 原因 yuányīn
  1. cause
  2. origin
  3. root cause
  4. reason

classifier: 個
5 不能 bùnéng
  1. cannot
  2. must not
  3. should not
6 做 zuò
  1. to make; to produce
  2. to write; to compose
  3. to do; to engage in; to hold (a party etc)
  4. (of a person) to be (an intermediary, a good student etc); to become (husband and wife, friends etc)
  5. (of a thing) to serve as; to be used for
  6. to assume (an air or manner)
7 仅仅 jǐnjǐn
  1. barely
  2. only
  3. merely
  4. only (this and nothing more)
=8 是 shì
  1. to be (followed by substantives only)
  2. correct; right; true
  3. (respectful acknowledgement of a command) very well
  4. (adverb for emphatic assertion)
=8 是 shì variant of 是 shì
9 接口 jiēkǒu
  1. interface
  2. port
  3. connector