If you gradually move your tongue forward towards the th-sound, stopping halfway, your tongue will be behind your teeth, and the pitch will get higher.
假如你渐渐将舌头前移向发th 声所在的位置，然后半路停下，你的舌头会停在你的牙后，同时音调会升高。
For example, you can brush the outer sides of your teeth from left to right across the top, then move to the inside and brush right to left.
比如，你可以从左至右从顶端刷你的牙齿的外面，然后移到里面从右至左。
We could see from his worn teeth that he was veryold, and though he could move his legs, he couldn’t seem to lift his head.
从水牛磨损的牙齿来看，它已经很老了，尽管还能伸伸腿，但看起来它已抬不动头了。
But if you gradually move your tongue forward towards the th-sound, stopping halfway, your tongue will be behind your teeth, and the pitch will get higher.
但是假如你渐渐将舌头前移向发th声所在的位置，然后半路停下，你的舌头会停在你的牙后，同时音调会升高。
If a bridge isn't made, the two teeth next to the space may move and tip over.
要是不镶的话，空隙两边的牙齿就会向中间移动、倾斜了。
Pressure is applied to the bands so that the teeth will move to where they should be. The pressure on the bands will be adjusted once a month.
在带环上加上压力，可以把牙齿往需要移动的地方移动，带环上的压力每一个月调整一次。
Not only do baby teeth hold the space that permanent teeth will move into, but your child will need to use those baby teeth for at least six years.
这不仅是由 于乳牙守护着将由恒牙填补的空间，还因为孩子的乳牙至少还要使用六年时间。
From now on, if you feel your dog's teeth while you are playing with him, say "Ouch" in a loud voice and move away from him.
从现在起，当你在和你的狗玩耍时感觉它要咬你的时候，你就大声喊“嗷”，并离开它。
CURRENCY markets can move fast when traders have the bit between their teeth, but today's fall in the value of sterling was remarkable.
货币市场会在投资者的言语之间发生巨大变化，但是今天英镑的大幅度贬值是非同寻常的。
CURRENCY markets can move fast when traders have the bit between their teeth, but today's fall in the value of sterling was remarkable.
货币市场会在投资者的言语之间发生巨大变化，但是今天英镑的大幅度贬值是非同寻常的。
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