bacteria BACTERIA

trail    跟踪，    n. 路径

trait      特点      conservative 

sober                    graphic      adj. 绘图，图形            PAMPER

procedure . 程序，步骤，手续

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bacterin

bacteria

the punishment  was harsh and  unfair

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regulation          glamorous

it's getting  warm,  and the first buds appears in springs.

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endorsement  认可

our  proposal has secured

secure    安心，安全的

security    . 安全感

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