2. choose vt.挑选
例句:Whatever method you choose, you must consistently stick with it.
无论采用哪种方式,你都必须要坚持一致。
3. attend vi.出席; 致力于
例句:He is really too busy to attend to anything else.
他实在太忙, 无法分身。
4. harness vt.利用; 给(马等)套轭具; 控制
例句:They will harness the sun's energy to heat homes.
他们将利用太阳能为住宅供暖。
5. international adj.国际的
例句:The first of May is International Labour Day.
五月一日是国际劳动节。
6. critical adj.关键的; 批评的
例句:His mind was forever critical.
他的头脑永远是批判的。