This is about tone changes in PInyin. It's in lesson one if you've learnt Pinyin with a professional teacher. 1.When a 3ed tone meets a 3rd tone, the first 3rd tone would change to 2nd tone,but only when you pronouce it. When you write, you dont change. e.g. 你好 are both 3rd tone words ONLY WHEN YOU PRONOUNCE, you say a 2nd你 and 3rd 好。 when a 3rd tone meets a 1st, 2nd, 4th and neutral tones, the first 3rd tone would change into half third ONLY WHEN YOU PRONOUNCE, which means you only pronounce the first half part of the sound, and your voice only goes down without going up. e.g. 老师， 好人，马路，走了。 3.The character 不 is forth tone. But when 不 meets 4th tone, 不 would change into 2nd tone BOTH WHEN YOU PRONOUNCE AND WRITE. e.g. 不bu4闻wen2不bu2问wen4

1. 盛 here is a verb, Pinyin is cheng(with second tone). It means to fill something in a utensil. So here 盛出来means to take the meat out of the pan and fill it in to a certain utensil, especially a dish or a bowl. For example, 盛米饭，to fill rice in thw bowl. 胜has another sound "sheng (with forth tone). 2.You've mixed the two similar phraces. In the first senctence you should use phrase"极其“ which means extremely, similar to "很，非常”. The second sentence should be 及其. 及 means and, 其 is a pronoun. So 及其 can be translated into as well as its. They are two different phraces with exactly the same Pinyin and similar characters. 3. You failed to some up with examples, because we barely put them together in one sntecne. I can only come up with one structure putting both in: 先 do sth 再 do another thing. For example ,先吃饭再学习。Or you can also say 吃完饭再学习。Here you don't use 先, but you use structure: done sth 再 do another thing

Are you in Taiwan? Traditonal chracters are only used in Taiwan and Hongkong. So i think it is more useful if you learn simplified characters in China. You can download Sougou input to type traditional characters. You need to learn Pinyin before you can type both types of Characters.

应该是应对措施。 “应对”是一个动词verb, 所以应对措施是当遇到困难和问题时做出的解决办法。 “对应”是一个形容词adjective, 是相应的意思，英语解释是correponding, 应对措施主要是怎么解决问题；对应措施主要是说这个措施对这个问题来说是正确的，合理的。

你这样用是对的，但是要注意，“也 ”翻译成 also, 但是和英语里的also不完全一样，中文里不能把“也”放在句子的最前面，只能放在subject主语的后面。所以如果说 他们没有我喜欢吃的菜，也服务很不好， 这样用就是不对的！

It's not complicated if a Chinese teacher can explain to you the structure and the strokes of Chinese charactersand what the ratical mean. There are only dozes of common raticals, if you remember them, then you can remenber hundres of Characters. For example, 他 , it means he/him. The left part is an very important ratical, it means person,(the ratical is the changing form of person character 人 ) so when you see this ratical, then the character is related with person. 们 also has this ratical, so it means the plural of person or animals. 她 is easier to remenber now. You cange the person ratical into a female 女， the right part does change. So it means she/her. 你 means you. it's a person, so we use this person ratical.

物理学的简称就是物理，口语中我们一般只说物理，比如，我的专业是物理。

1. 他有三支蓝颜色的笔。 This sentence is correct. 2. 他有各种裤子。 This sentece id corret grammatically, but in spoken Chinese we prefer to see 他什么样的裤子都有。 3. To ask someone 's major you can say 他是学什么（专业）的？ or 他是哪个专业的（学生）？ I hope my answer would help you a little.