先物買い

(1)invest at a risk; "I bought this house not because I want to live in it but to sell it later at a good price, so I am speculating"

(2)リスクを伴って投資する

(1)I bought this house not because I want to live in it but to sell it later at a good price, so I am speculating

(2)私はこの家に住むために買ったのではなく、後に良い価格で売るために購入した、だから私は投資している