1. leave a mark on 留下痕跡
The scandal left a mark on his reputation.
那件丑事玷污了他的名聲yZH_N3ZxR.Yc。

2. ripple across 波及
But the research also suggests damage caused by ocean acidification could ripple across economies around the world.
但研究還表明海洋酸化所造成的損害，可能波及世界各地的經濟x0bUei5y_Xo=。

3. show no sign of 絲毫沒有顯示出……的跡象
So far, they show no sign of acknowledging this.
事情發展到現在，依然沒有任何表明他們愿意承認這一點的跡象UG^9Vj(icBl](_]N5b2d。

4. sticking point 癥結；關鍵
That's been a major sticking point between the White House and leading Republican law makers.
主要的癥結就出在白宮和共和黨的主要法律制定者們身上WsF~~xD5tAZ)。