strengthener
n.
助力器；堅(jiān)固者
英語翻譯 Noun:
-
a device designed to provide additional strength;
\\\"the cardboard backing was just a strengthener\\\"
\\\"he used gummed reinforcements to hold the page in his notebook\\\"
造句
用作名詞(n.)
- The cardboard backing was just a strengthener.
這個(gè)紙板襯背就是一個(gè)助力器。
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