你可以试着把需要双引号的句子赋给一个变量，然后把它赋给v-b-tooltip。

<template>
    <label>Encoding
        <feather-icon
        icon="AlertCircleIcon"
        class="mr-50 my-icon"
        v-b-tooltip.hover.right="tooltipText"/>
    </label>
</template>

<script>
export default {
data(){
    return{
        tooltipText:'The encoding used inside the feed. Leave "Automatically" if you are uncertain'
    }
}
}
</script>

像这样-

<feather-icon
  icon="AlertCircleIcon"
  class="mr-50 my-icon"
  v-b-tooltip.hover.html="tipMethod"
/>

methods: {
  tipMethod() {
    return 'The encoding used inside the feed. Leave "Automatically" if you are uncertain'
  }
}