Test-letter
[医] 视力标型(视力表)
🧩 词语组成解析
letter
['lɛtɚ]
n. 信;证书，许可证;字母，文字;字面意义;
vt. 用字母标明;写字母于;加标题;
vi. 写印刷体字母;
🗣️ 情景例句
How much will it cost?
需要多少钱？
A poor man who takes a rich wife has a ruler, not a wife.
穷汉娶富妻，必受老婆欺。
the warm water round the hot oil pipes under the sea;
海底热的输油管道附近的温暖的海水；