Sign test
[计] 符号检验, 符号测试\\n[化] 符号检验
🧩 词语组成解析
🗣️ 情景例句
It was very thoughtful of you to send flowers.
你送花来，想得真周到。
I did homework lat night.
我昨晚做家庭作业。
Some people think that the weather is unpleasant, the city ugly and dirty, the competition fierce and the streets unsafe.
有些人认为，这儿的气候不佳，市容丑陋肮脏，竞争激烈，街上不安全。