定向: directional; orient; orientation; sense of orientation; predetermined orientation 短语和例子无线电定向 radio range orientation; 给 ... 定向 give an orientation to; 定向爆破 directional [directed] blasting;
示: Ⅰ动词(摆出或指出使人知道; 表明) show; indicate; signify; instruct; notify 短语和例子暗示 hint; drop a hint; 出示证件 produce one's papers; 提示 point out; prompt; 以示区别 so as to distinguish this from other casesⅡ名词1