to get control or advantage over someone
获得对某人的控制或优势
"Through smart negotiation, the ambassador gained the upper hand."
"通过聪明的谈判，大使获得了上风。"
to have many responsibilities or tasks
to be very successful or happy
someone who has influence in the selection or appointment of...
to take a foolish risk that may bring bad luck
to fulfill your part of an agreement or duty
to feel very nervous about something
