In Chinese, '基因' is the exact translation of the English term 'gene'. It is often used in the fields of biology and genetics, representing the fundamental physical and functional units of heredity. Specific characteristics could be determined by '基因' in an organism.

In Chinese, the word for winner is '赢家' ('yíng jiā'). It is commonly used in the same contexts as the English word, for example to describe someone who has won a competition or achieved a significant success. It's a compound word made of two characters: '赢' means 'to win' and '家' here means 'person'.

The Chinese word '突然' is used to convey the same meaning as 'suddenly' in English. It is typically used to express the unexpectedness or abruptness of an event or action.

The Chinese word '竞争力' is used to describe the ability or potential of an individual or organization to compete against others. Similar to English, it is often used in contexts such as sports, business or any field that involves competition.

The Chinese word for sea, '海' (hǎi), is used much like its English counterpart. It's used to describe large bodies of salt water. It's also commonly used in compound words for specific seas or oceans, like '南海' for South Sea or '太平洋' for Pacific Ocean.

In Chinese, '他' is a third-person pronoun same as 'him' in English. It is used to refer to a male person or a person where the gender is unknown or irrelevant in the context. In verbal or written context, it can be used as the subject, object, or possessive form based on its position in the sentence.