Reserved materials
[經] 保留材料, 后備材料
?? 詞語組成解析
reserved
[ri'z?:vd]
adj. 預訂的;矜持的;儲藏著的;
v. 保留[儲備]某物( reserve的過去式);
materials
[[m?'ti?ri?lz]]
n. 材料；材料費；材料科學；材質（material的復數）
??? 情景例句
He cancelled his appointment.
他取消約會了。
Never judge by appearances.
人不可貌相。
Like this?
像這樣？