Retrospect to
追溯到
?? 詞語組成解析
retrospect
['r?tr?sp?kt]
n. 回顧，回想;
vt.&vi. 回顧;追溯;
spec Spect, spic= look, see,表示”看”#詞根助記：retro向后+spect看→向后看→回顧
to
[tu,t?]
prep. 向，朝著;到;關于;屬于;
adv. 朝一個方向的;到某種狀態;關閉;
??? 情景例句
Clark's Theater.
Clark's劇院。
A bad workman quarrels with his tools.
拙匠常怨工具差（人笨怨刀鈍）。
If there had not been a hard layer of rock beneath the soil, they would have completed the job in a few hours.
如果不是因為土壤下面有一層堅硬的巖石，他們的營救工作僅用幾個小時就可以完成了。