upper cover的用法和樣例：
例句
- Doors Open Both the FRONT DOOR and UPPER HOOD are open.
前門(mén)和上蓋一起開(kāi)。 - And every open vessel that has no cover fastened on it is unclean.
凡敞口的器皿，就是沒(méi)有扎上蓋的，也是不潔凈。
upper cover的相關(guān)資料：
臨近單詞
upper fan
upper
Upper margin of aryepiglottic fold
Upper-triangular operator matrix
upper energizer managing reception
Upper thoracic vertebrate fracture
Upper Soft Tissue Dynamic Enhanced
upper semicontinuous decomposition
Upper probability limit for damage
upper gastronintestinal hemorrhage
upper-mlddle class intellectuals
Upper Cretaceous Zhutian Formation
