Even though it makes a great houseplant, you should be careful for children and animals: callas are very toxic, if eaten!
虽然马蹄莲花一种极好的盆栽花，但是你要留心你的小孩和宠物，不要让他们吃了它，马蹄莲花有剧毒。
Although not very toxic, these drugs often need to be tested in cancer patients, since the target of the drug is expressed only in these patients.
尽管毒性不是很大，这些药物通常需要在癌症病人身上进行试验，因为该药物的靶点仅表现在病人身上。
If you suspect your baby has taken a very toxic substance, call the emergency services and get the baby to hospital as soon as possible.
如果你怀疑你的宝宝已吞食了某种高毒性的物质，则应请求急救服务并尽快将宝宝带到医院救治。
Many gases can be produced also that are quite smelly and a few are odorless and very toxic in nature.
有很多非常有刺激味道的气体也会产生，而有一些却是无味有毒的。
What would be the consequence to an organism IF arsenate were substituted for phosphate? Arsenate is very toxic to most organisms. Explain why.
如果砷酸盐取代了磷酸盐会对有机体产生什么后果？砷酸盐对大多数有机体是非常有毒的，解释。
R50 Very toxic to aquatic organisms.
对水生生物有极高毒性；
Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
对水生生物有极高毒性，可能对水体环境产生长期不良影响。
Very toxic: danger of very serious irreversible effects through inhalation and in contact with skin.
极高毒性：经吸入和与皮肤接触有极严重不可逆作用危险。
Very toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed.
极高毒性：经吸入、与皮肤接触和吞食有极严重不可逆作用危险。
Very toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed.
极高毒性：经吸入、与皮肤接触和吞食有极严重不可逆作用危险。
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