1. 因此commit當交付解釋時意思是 to give or transfer somebody or something to a state or place for safe keeping, treatment, etc. 所以通常指的是把人或東西交給別人代為照顧之意 ex: The child was committed to the care of his grandmother. ex: They decided to commit the old man to the mental hospital. 2. I feel + that 子句是沒錯,問題是that之後your objectives are to work in the field of sales promotion, you should attempt to obtain a position with a firm that would enable you to gain experience in your preferred area. 是一個有附屬子句和主要子句的一個complex sentence 因此需要有since這個從屬連接詞來引導your objectives ...sales promotion這個部分 加油!!