stool pigeon
告密者
bar stool
吧台凳
foot stool
脚凳
stood up
站起
stood by
袖手旁观
stoop down
弯腰
step stool
台阶凳
stood still
站着不动
window stool
窗边凳
stoop to
屈尊
stool pigeon
告密者
bar stool
吧台凳
foot stool
脚凳
stood up
站起
stood by
袖手旁观
stoop down
弯腰
step stool
台阶凳
stood still
站着不动
window stool
窗边凳
stoop to
屈尊
探索常用高频词汇