on of this is...
- we can illustrate this by...
- we can demonstrate this by...
- this can be seen in the following (illustration).
- take x, for example.
- imagine...
- how does this work in practice?
在两个话题间过渡
-having dealt with a, i now want to move on to b.
-from a, it follows that ...b
-you may have noticed that in a,…. now in b.
-as a consequence of a..., b...
-although in a we showed..., in b...
-one exception to a is ...b
-...and this leads us to ...
-...which brings me to my next point...
-so much for a, let's look at b.
-that covers a, so what about b?
-if we're all happy with that, where do we go from here?
-as regards (x), however, the situation is somewhat different.
次要话题
-in this context it is worth mentioning...
-as an extension of this...
-it's also true that...
-one further point to add is..
-if i can digress for a moment...
-perhaps i might also mention that...
-as an afterthought, (how, what) about...
-i will just touch on one other point in passing...
-before we leave this subject, it's worth saying that...
回归主题
-but this is taking us away from the main theme...
-to return to the main point/subject.
-picking up where we left off
-as i was saying before that