| break down，by contrast，make inferences，figure out，feel down，get through |
（1）Optimism，
by contrast
by contrast
，can make you happy，healthy and successful.
（2）In order to
make inferences
make inferences
，he looked into the matter many times and asked many people.
（3）Let's
break down
break down
the project into smaller parts in order to deal with them one by one.
（4）When you
feel down
feel down
or lost，this notebook can be your source of inspiration.
（5）I was glad to hear that she
got through
got through
the exam，which she had been preparing for a long time.
（6）I could hear them talking but I couldn't
figure out
figure out
what they were saying.
