Naftolens
焦油中不飽和烴
??? 情景例句
That's an excellent idea, Michelle.
這是個好主意， Michelle。
Set a beggar on horseback and he'll ride to the devil.
小人得意，忘乎所以。
Whose is this shirt? Is this yours, Li Lei?
這是誰的襯衫？是你的嗎？李磊？