Natural phenomena: advanced 自然现象：高级

渔民要根据潮汐出海。

Yúmín yào gēnjù cháoxī chūhǎi.

Fishermen go out to sea according to the tides.

潮汐是月亮引起的吗？

Cháoxī shì yuèliang yǐnqǐ de ma?

Are the tides caused by the moon?

现在是涨潮还是退潮？

Xiànzài shì zhǎngcháo háishi tuìcháo?

Is it high tide or low tide now?

涨潮时，海水会淹没沙滩。

Zhǎngcháo shí, hǎishuǐ huì yānmò shātān.

At high tide, the sea covers the beach.

等退潮了再去海边吧。

Děng tuìcháole zài qù hǎibiān ba.

Let's go to the seaside once the tide has gone out.

退潮后，渔船搁浅了。

Tuìcháo hòu, yúchuán gēqiǎnle.

After the tide went out, the fishing boat ran aground.

万有引力是谁发现的？

Wànyǒuyǐnlì shì shéi fāxiàn de?

Who discovered universal gravitation?

太空里也有万有引力吗？

Tàikōng lǐ yě yǒu wànyǒuyǐnlì ma?

Is there universal gravitation in space too?

月亮也会绕地球公转。

Yuèliang yě huì rào dìqiú gōngzhuàn.

The moon also revolves around the Earth.

水星公转得比地球快吗？

Shuǐxīng gōngzhuàn de bǐ dìqiú kuài ma?

Does Mercury orbit faster than the Earth?

叶子上凝聚着很多露水。

Yèzi shàng níngjùzhe hěn duō lùshuǐ.

A lot of dew has formed on the leaves.

早上草地上有很多露水。

Zǎoshang cǎodì shàng yǒu hěn duō lùshuǐ.

There is a lot of dew on the grass in the morning.

极光把整个夜空照亮了。

Jíguāng bǎ zhěnggè yèkōng zhàoliàngle.

The aurora lit up the whole night sky.

极光是太阳风带来的美景。

Jíguāng shì tàiyángfēng dàilái de měijǐng.

The aurora is a beautiful sight brought by the solar wind.

太阳是离我们最近的天体。

Tàiyang shì lí wǒmen zuìjìn de tiāntǐ.

The sun is the celestial body closest to us.

望远镜可以用来观察天体。

Wàngyuǎnjìng kěyǐ yònglái guānchá tiāntǐ.

Telescopes can be used to observe celestial bodies.

他喜欢在满月下散步。

Tā xǐhuan zài mǎnyuè xià sànbù.

He likes to take walks under the full moon.

满月的夜晚，院子里很亮。

Mǎnyuè de yèwǎn, yuànzi lǐ hěn liàng.

On a full moon night, the yard is very bright.

指南针会受磁场影响。

Zhǐnánzhēn huì shòu cíchǎng yǐngxiǎng.

A compass is affected by magnetic fields.

磁场看不见，也摸不着。

Cíchǎng kànbújiàn, yě mōbùzháo.

A magnetic field can't be seen or touched.

地磁每年都有一点变化。

Dìcí měinián dōu yǒu yìdiǎn biànhuà.

Geomagnetism changes a little every year.

鸟类可能靠地磁找到方向。

Niǎolèi kěnéng kào dìcí zhǎodào fāngxiàng.

Birds may find their direction by using geomagnetism.

北极的夏天有极昼现象。

Běijí de xiàtiān yǒu jízhòu xiànxiàng.

The Arctic summer has the polar day phenomenon.

极昼时太阳整天不落下。

Jízhòu shí tàiyang zhěngtiān bú làxià.

During polar day, the sun doesn't set all day.

极夜让很多游客想看极光。

Jíyè ràng hěn duō yóukè xiǎng kàn jíguāng.

The polar night makes many tourists want to see the aurora.

经历极夜的人容易心情低落。

Jīnglì jíyè de rén róngyì xīnqíng dīluò.

People who live through the polar night easily feel low.