It is compulsory for all motorcyclists to wear helmets.所有骑摩托车的人都必须戴头盔，这是强制性的。The shop at the corner of the street sells helmets.街道拐角那家商店出售安全帽.Protective helmets must be worn on site.在工地必须戴防护帽....
Masturbation is so harmful to your body.手淫有害身体。In contrast, girls are likely to discover masturbation alone and by accident.反过来, 女孩大约都是独自或偶然发现自娱的乐趣.Masturbation is not a good thing when one shoots blanks repeatedly.这是华航启...
Lemon and lime juice were both temporarily out of stock.柠檬汁和酸橙汁暂时都缺货。Red tights are out of stock.红色紧身衣脱销了.The blue skirts are out of stock.这种蓝衬衫已脱销....