Biofilm communities can harbor bacteria longer and are very difficult to clean.
生物膜群落容纳细菌的时间更长且很难清洗。
13 car leather leather - waxing fine pores, anything in the infiltration are very difficult to clean out, is a suture met wax in the future can't be washed out.
车内皮件打蜡——真皮类有纤细毛孔，渗进去的任何东西都很难再清洁掉，缝线更是一碰到蜡今后就别想洗得掉。
At the same time, the rain is also mixed with some of the naked eye can not see the dust, after the sun, will be derived from a large number of oxides, time to clean up very difficult to clean.
同时，雨水中还夹杂一些肉眼看不到的灰尘，经过阳光照射后，会衍生出大量的氧化物，时间长了想清理干净非常不易。
Don't really have an outstanding player but defensively are one of the best teams in the competition and very difficult to break down kept 7 clean sheets in the lead up to the World Cup.
全队似乎没有特别出众的球星，但是其稳固的后防线却是所有参赛球队中最令人称道、同时也是最不易攻破的。这支队伍还保持着自参加世界杯外围赛至今，7场比赛不失球的骄人纪录。
Don't really have an outstanding player but defensively are one of the best teams in the competition and very difficult to break down kept 7 clean sheets in the lead up to the World Cup.
全队似乎没有特别出众的球星，但是其稳固的后防线却是所有参赛球队中最令人称道、同时也是最不易攻破的。这支队伍还保持着自参加世界杯外围赛至今，7场比赛不失球的骄人纪录。
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