长度: length; longitude; size; extent; footage 短语和例子各种长度 assorted lengths; (合乎)理想的长度 desired size; 它的长度合适。 it is of convenient length
触: Ⅰ动词1.(接触) touch; contact 短语和例子游客请勿触摸陈列品。 visitors are requested not to touch the exhibits.2.(碰; 撞) strike; hit 短语和例子触雷 strike [touch off] a mine; 船触礁了。 the ship struck a rock.3.(触动) touch