Well spotted: 赞扬眼力好，看的准

be frozen/rooted to the spot或者glued to the spot:not able to move, for example because you are frightened or surprised 呆若木鸡，一动不动

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a leopard cannot change its spots 本性难移

(saying) people cannot change their character, especially if they have a bad charactereg. You didn’t really expect her to be on time, did you? A leopard can’t change its spots.http://s1/mw690/003bKbMmty6SP0onm1O50&690

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an on-the-spot report 现场报道running on the spot 原地跑步 running outside 室外跑步http://s5/bmiddle/003bKbMmty6SP05xuK0a4&690

have a weak spot for sth: if someone has a weak spot for something, they like it very much. 特别喜爱，偏爱beauty spot, beauty mark:美人痣，美人斑http://s4/mw690/003bKbMmty6SOZQ2dI7f3&690

put somebody on the ˈspot 使某人为难，让某人感到尴尬

to make somebody feel awkward or embarrassed by asking them a difficult questionThe interviewer's questions really put him on the spot.an accident black spot 事故频发地段http://s4/mw690/003bKbMmty6SP0cFWRd03&690

The record quickly reached the number one spot in the charts. 唱片很快升到了排行榜第一名的位置。http://s8/mw690/003bKbMmty6SOZUaStV27&690