it must be clean（意思翻译）

它必须是干净的

it must be clean（相似词语短语）

1、clean it───把它擦干净

2、be must───必须

3、be must for───必须

4、must be happy───一定很开心

5、must clean───必须清洁

6、must be the───一定是

7、it must be───它必须是；一定是

8、must be nice───一定很好

9、be clean───保持清洁

it must be clean（双语使用场景）

1、Since there have been complaints about the quality of the water in the river, residents must be avoiding the river because they think that it is not clean enough.───由于曾经存在对于这条河水质的投诉，居民一定是因为他们认为河水不够干净才不在这里活动。

2、Therefore, to make packaging materials in its life cycle, the whole process has a "green" performance, it must be clean production.───因此，要在其生命周期，整个过程的包装材料有一个“绿色”性能，就必须清洁生产。

3、Nuclear energy is clean, and it must also be safe and secure.───核能是清洁的，也必须是安全的。

4、These street were too dirty, it must be clean, but no one would administer.───这些街道太脏了，必须清扫。但是没有人管理。

5、It is well known to enthusiasts that a glass must be beer clean -free of any grease or skin oils, including fingerprints-to support a good head of foam.───都知道，要想倒出一杯漂亮的泡沫满满的啤酒，他的杯子必须做到“啤酒干净”——也就是说不能有一点儿油渍或者皮肤的油，连指纹都不能有。

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