The moon period has to be a full moon or nearly full.
月亮的周期必须是满月或接近满月。
It has to be done by hand, not typing on a keyboard.
必须是手工操作，而不是在键盘上打字。
But it has to be done by hand, not typing on a keyboard.
但必须是手工操作，而不是在键盘上打字。
If the solar system has an underachiever, it has to be Venus.
如果太阳系有一个后进生，那一定是金星。
"But you don't want them to feel it has to be perfect," she says.
“但你不想让他们觉得，这必须是完美的。”她说。
The case has to be made watertight.
案由必须做到无懈可击。
There has to be some kind of way out.
肯定有办法解决。
It has to be proved that they are the guilty party.
尚需证明他们是有过错的一方。
There has to be a reason for his strange behaviour.
他的古怪行为一定事出有因。
"Not all feminism has to be like this," Jo maintains.
乔坚持认为，“并非所有的女权运动都得像这样。”
The top layer of skin has to be grafted onto the burns.
表层皮肤必须移植到烧伤处。
If there has to be a replay we are confident of victory.
如果不得不重赛，我们有信心赢。
Work has to be done on schedule and in a prearranged sequence.
工作必须按期并以预先安排好的顺序完成。
So as for your question, Miles, the answer still has to be no.
那么至于你的问题，迈尔斯，回答依然是否定的。
The United States has to be careful it doesn't overplay its hand.
美国得注意不要高估自己。
Granted, it's not the most pleasant of jobs but it has to be done.
的确，这不是最令人愉快的工作，但也得做呀。
This is a citywide problem that has to be addressed as an emergency.
这是个全城性的问题，必须当做紧急事件对待。
Every decision has to be backed up with rational and cogent arguments.
每项决定都应该有合理和令人信服的论据做支持。
A good salesperson has to be aggressive in today's competitive market.
在当今竞争激烈的市场上，一个好的销售员应该有进取精神。
The television producer today has to be part news person, part educator.
今天的电视制作人必须一半是新闻人，一半是教育者。
A city is like any product, it has to be packaged properly to be attractive to the consumer.
一座城市就像任何产品一样，需要适当地加以包装来吸引消费者。
In times of financial stringency it is clear that public expenditure has to be closely scrutinized.
财政紧缩时期显然要对公共支出进行严格审查。
Whether to stay in the federated state or become independent is a decision that has to be made by the people.
是否要维持联邦状态或要独立，这是一项必须由人民做的决定。
In every friendship there has to be some give-and-take.
在每一段友谊中都有一些相互让步。
Of course, to really enjoy poetry, it has to be read aloud.
当然，要真正欣赏诗歌，就必须大声朗读。
Mom says the grass is very long and has to be cut.
妈妈说草长得很高，需要修剪。
Factory wastewater has to be cleaned before it goes back to nature.
工厂废水在回归自然之前必须进行净化。
The moon has to be very low in the sky—only 42 degrees from the horizon.
月亮必须在天空中很低的位置——与地平线只有42度。
If not, use a diary or notebook to make notes of what has to be handed in and when.
如果没有，用日记或笔记本记下必须交什么和什么时候交。
There has to be hidden 39 steps.
必须隐藏39个步骤。
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