A famous restaurant in Seoul, South Korea, must pay a fine after serving ants to customers. The owner put three to five ants on top of sorbet, a cold fruit dessert, to give the dish a sour taste.
on top of= 〜の上に(何かの表面や上部に載せて)
The restaurant broke the local food safety law. South Korea allows people to eat only ten types of insects, such as grasshoppers and silkworms. Ants are not on this list of approved insects.
such as= 〜など(具体的な例を挙げるときに使う表現)
Judges said the problem was serious because tests showed high levels of heavy metals in the ants. The owner said he did not know that serving ants was illegal in South Korea.
high levels of= 高濃度の〜(大量または高い割合の存在を示す表現)