obstacle
n.障碍(barrier, impediment)
obstruct
vt.阻碍，妨碍(hinder, impede)
Some paper got in the sink and obstructed the drain.
一些纸掉进了水槽，堵住了下水道。
prevent
vt.阻碍(block, cumber, hinder, obstruct)
His laziness prevented his career.
他的懒惰妨碍了他的事业进步。
snag
n.障碍(disadvantage, obstacle)
The ship struck a snag near the bank of the river.
船在河岸附近触礁了。
stunt
vt.阻碍(hinder, impede)
The barren environment stunts the tree from developing into a big one.
贫瘠的环境让这棵树无法长成大树。
tamper
vi.干预(interfere, intervene)
The secretary tampered with the prime minister's schedule.
秘书篡改了首相的日程安排。
entrap
vt.以网或陷阱捕捉(trick, entice)
The hounds entrapped the fox.
猎狗把狐狸捕捉住了。
stalk
vt.跟踪(猎物)(trace)
The hunter carefully stalked the deer.
猎人小心地跟踪那头鹿。
trace
n.痕迹(remnant, residue)
The cunning fox leaves no traces for the hunters.
狡猾的狐狸没给猎人留下任何痕迹。
vestige
n.痕迹，遗迹(remnant, trace)
scout
n.侦察，搜索 vt.侦察，跟踪(hunt, search out)
They scouted a place for a meal.
他们找了一个地方吃饭。
track
n./v.追踪
The hunter followed the animal's tracks.
猎人跟踪了动物的踪迹。