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In short, the evidence implies that these insect populations, if not self-regulating, may at least be regulated by an agent more intimately connected with the insect than are predatory birds or parasites.
它结论说,“总而言之,这些证据表明这些昆虫的数量,如果没有自我调控,至少可能是被一种和insect联系更为紧密的agent所调控,而不是和predatory birds或是寄生虫所联系紧密的agent” ---不知道我有没有理解错啊
去weaken它:the nuclear polyhedrosis virus is present in a number of predators and parasites of lepidoptera;C说,agent 就在predator birds和寄生虫当中,这个不是削弱么? = =,我真没有明白,求助啊 |
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