From somewhere, he had unearthed a black silk suit

It is verified that the wave action conserves only if the basic zonal currents are steady and a W-Ely oriented mountain barrier with unbounded extent exists.

当基本流场定常且存在无限长的东西向山脉时，则有波作用量守恒。

As a famous scenic resort, it has beautiful natural scenery, the unique minority custom. However, continuous mountain is a natural barrier for native people to develop economy.

作为著名旅游胜地，它拥有迤逦的自然风光，独特的少数民族风情，而对于长期生活在这里的群众，连绵不绝的山脉则成为经济发展的天然障碍。

I had a letter from my mother last week

上周我收到了母亲的一封信。

I had received a letter from a very close friend.

我收到一个很要好的朋友的来信。

I was supposed to be writing a letter but I'm afraid I got sidetracked.

我本来应该在写信，但后来恐怕是分心干别的去了。

She composed a letter of protest.

她写了一封抗议信。

I wrote the Publicity Department a letter.

我给宣传部写了一封信。

I wrote a letter to the Publicity Department.

我给宣传部写了一封信。

She was bent over her desk writing a letter.

她正伏案写信。

Is there a letter from them in the mail?

邮件里有他们来的信吗？

I didn't receive a letter from him yet.

我还没有收到过他的信。

There's a letter for you from your mother.

有你母亲的一封来信。

If there's a letter from France please show it to me.

如有法国来的信，请拿给我看看。

We could write a letter to the director.

我们不妨给主管写封信。

I haven't received a letter from him yet.

我还没有收到他的信呢。

I had a letter from the people who used to live next door.

我接到了过去的邻居写来的一封信。

Experiment on Catfishes ( Parasilurus asotus) Prey upon Reared fishes in pond

鲶鱼对饲养鱼捕食程度的池塘试验

Lemongrass is an aromatic grass used in cooking and herbal medicine.

香茅是一种用于烹饪和草药医学的芳香草。

Aromatic grasses such as lavender and rosemary are often used in aromatherapy.

薰衣草和迷迭香等芳香草常用于芳香疗法。

In Yangon, formerly Rangoon, the broth is made aromatic with lemon grass, ginger and garlic.

在仰光，肉汤中要放入柠檬草、生姜和大蒜调味。