1、footprint, the impression left by a foot or shoe on the ground or a surface
2、lodestar, a star that is used to guide the course of a ship, especially the pole star
3、cosy up, to act in a friendly way towards somebody, because of the relationship will be useful
4、indiscriminately, not using of exercising discrimination
5、on a roll, experiencing a continuous success or good luck
6、fledgling, a young bird that had just fledged, immature
7、pivot, a person or thing that plays a main part in a situation or enterprise
8、nimble, quick and light in moment or action, able to think and understand quickly
9、face down, to deal in a strong and confident way with someone who opposes you
１０、jump through the hoops, go through an elaborate or complicated procedure in order to do
continue.
up to 10, as of today.