1.appear to 似乎，好像

例句:The terrorists appear to have chosen their targets precisely.
恐怖分子似乎已經明確的選擇了他們的目標IxAjd#1Vz%pN!f。

2.health risk 健康風險

例句:Now researchers at university college of london have quantified another health risk for those exposed to secondhandsmoke: mental-health ills.
現在，倫敦大學學院的研究者已經確定了接觸二手煙所導致的另一項健康風險心理疾病c.%eS^(KjFzrB。

3.allergic to 對...過敏

例句:He's violently allergic to carrots, peanuts and many other fresh fruits and vegetables. "
艾森伯格對胡蘿卜、花生和其他許多種新鮮水果與蔬菜嚴重過敏WMvJz2&AZ[uZa-。

4.suitable for 適合

例句:These advantages and disadvantages make them more suitable for certain vehicles.
這些優缺點使得它們各更適用于某些汽車mFI]6pszWHRl&y[a_8x。