block system的用法和樣例：
例句
- Every product that folds shall have a latch system that requires positive action on the part of the user to permit folding of the product.
每個(gè)有可折疊機構的產(chǎn)品，均需有閉鎖系統來(lái)確保折疊這個(gè)動(dòng)作是有用戶(hù)來(lái)操作的。
詞匯搭配
- block system 分區開(kāi)采法
