| 1. | This rule has been superseded since 1925 .
自1925年以来，此项原则已退居次位。 |
| 2. | I have been here since 1947 .
1947年以来我一直住在这里。 |
| 3. | The increase has been moderate since 1954 .
自一九五四年以来，增长的速度已经减慢。 |
| 4. | Since 1956 they had eked out a miserable existence .
1956年以来，他们过着一种悲惨的生活。 |
| 5. | The court structure has been much modified since 1815 .
1815年以来，法院组织机构也进行过很大的改革。 |
| 6. | Belgium and luxembourg have formed such a union since 1921 .
比利时和卢森堡从1921年以来就组成了这种同盟。 |
| 7. | The developing-country bloc has coalesced in stages since 1964 .
1964年以来，发展中国家集团已经逐步联合起来。 |
| 8. | Since 1960, many horizontal immersion extractors have been introduced .
自1960年以来，采用了许多水平浸提装置。 |
| 9. | In fact, since 1976, one-chip microcomputers are a reality .
实际上，自1976年以来，单片微型计算机已经成为现实。 |
