Trace implementation
[計] 追蹤實現
?? 詞語組成解析
trace
[tres]
vt. 跟蹤，追蹤;追溯，探索;探索;查找;
vi. 沿著一小徑或道路前進;可以追溯的;
n. 痕跡，蹤跡;微量，極少量;[植]（脈）跡;痕跡;
trace(draw)→回溯
implementation
[,implimen'tei??n]
n. 成就;貫徹;implement的變形;安裝啟用;
??? 情景例句
You lost by only a hundred and twenty-one votes.
僅僅以一百二十一票的些微差距輸了。
That's too much!
太過分了！
Sure enough, a policeman arrived on the scene and politely asked the workmen to go away.
果然，警察來了，不禮貌地請工人離開此地；