New Words：

bumblebee [ˈbʌmblbiː] n. 熊蜂；大黄蜂
earthworm [ˈɜːrθwɜːrm] n. 蚯蚓

Sample Sentences：

A bumblebee stung me on the cheek.
There's no way to free Bumblebee without harming the humans.

The earthworm is good for our crops.
I ate a whole earthworm when I was five.

sting [stɪŋ]
v.刺；蜇；叮；（使）感觉刺痛
n.刺；刺伤；蜇伤；刺毛

stung [stʌŋ] sting的过去分词和过去式

harm [hɑːrm]
n.伤害；损害
v.伤害；损害

crop [krɒp] n.庄稼；作物

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