Marsh test
[化] 马什试验
🧩 词语组成解析
marsh
[mɑrʃ]
n. 沼泽，湿地;
🗣️ 情景例句
Seven o'clock, I'll pick you up at your office.
晚7点，我去办公室接你。
When I slept, he was out.
当我睡了时候，他外出了。
Oh, I usually come on foot.
噢，我常步行来。