A trace
[電] A掃描軌跡
?? 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
??? 情景例句
Makes excuses.
找借口。
Cut the crap!
少說廢話！
Yes. Go along Zhongshan Road, and turn right at the second crossing. Go across the bridge.
可以。沿著中山路走，在第二個十字路口處進右拐彎。過橋后。