vibrato

So at first glance, the idea of a seasonal flamenco Christmas performance seems as wobbly as a cantaora's vibrato.

所以初看上去，弗拉门戈舞作为圣诞季节的表演与女歌星Cantaora 的颤音一样令人心颤而略带伤感。

I picked up my cello, screw tight the hairs of the bow and soar once more into Belle Nuit, the vibrato still wobbling like an unbalanced tire.

我拿起我的大提琴，拧紧弓毛，再一次悠扬地奏起《夜色美丽》，颤音仍然颤抖如同不平衡的轮胎。