2016.7.26
learning the bash shell
contraction 【kənˈtrækʃən】
- the act or process of making something smaller or of becoming smaller
- the hot metal undergoes contraction as it cools.
- two teams were eliminated in the contraction of the baseball league.
obscure 【əbˈskjʊr】
- not well-known: not know to most people
- the details of his life remain obscure
- an obscure poet- difficult to understand
- for some obscure reason, the group is very popular.
identical 【aɪˈdɛntɪkəl】
- exactly the same
- we visited the identical place we stopped at last year.- exactly alike or equal
- they were wearing identical coats.
- the results were identical to/with those of the first test.
thus far
- until now or until the present stage in a process
- congress has thus far been unwilling to support an increase in federal taxes.