Retrace line
[電] 返馳線
?? 詞語組成解析
retrace
[ri'treis]
vt. 折回，折返;回憶，回想;追溯，探源;重描;
line
[la?n]
n. 線條;排;行列;界線;
vt. 排隊;用線標出;沿…排列成行;給…安襯里;
vi. 形成一層;排隊;擊出平直球;
??? 情景例句
A credit card is very useful when you go traveling.
當然旅游的時候，信用卡很有用。
I regard that man as lost, who has lost his sense of shame.
我認為，人喪失了廉恥就完了。
It's tomorrow at twelve o'clock, right?
是明天12點吧？