n.攻击开始时刻;
英文例句/中文翻译:
The burning incense could effectively prevent mosquito bites with windows open a little but 2.5 h after it was burnt the frequency of mosquito bites was 13.3 times per hour.
在现场窗户微开时应用该盘香能有效预防蚊虫叮咬,但蚊香点燃结束后2.5h,蚊虫叮咬率为13.3次/h;
You don't sound the'h'in'hour'.
hour 中的h不发音.
The'h'is silent as in'hour'.
在 hour 这个字中,h不发音.