harmful substance是什么意思？

• reveal
• satisfaction
• bombarded
• cloud
• toxicity
• tomato
• pear
• banger
• 造型的英文
• monitor
• lycopene
• giraffe
• 参数英文
• permitted
• conflict
• 旋律的英文
• predict
• ultra
• candy
• 导师英文
• explore
• searches
• begins
• 抛弃英文
• 缺陷英文
• default
• emergency
• prompt
• mind
• disappointed

• bothering
• amazing
• general
• silver
• passage
• lake
• profile
• droplets
• 来源英语
• supper
• lesson
• rice
• BARRIE
• 局外人英文
• juice
• 方案英语
• front
• dragon
• intermission
• general
• volume
• 参与者英文
• tourist
• erased
• 确认英文
• vehicle
• repeat
• narrow
• saturday
• passage

• play the violin
• ride a bike
• TV reporter
• motor cycle
• funnier
• squid
• have a fever
• have a headache
• have a sore throat
• have a toothache
• tongue twister
• go skiing
• school bag
• toy train
• soft drinks
• ball pen
• How lovely
• I see
• Let me see
• come here
• water bottle
• come home