When do I need to use an apostrophe?什么时候用撇号？Answer these questions, using the words in parentheses. Put the apostrophe in the right place.用句后括号中的词或词组来回答问题, 注意撇号的位置.'It's' (with an apostrophe) should be use...
目的: 从佩兰中提取挥发油,并测定其含量.Objective : To extract and determine naphtha in Eupatorium fortune.方法: 采取超临界CO2萃取 、 微波萃取和水蒸汽蒸馏三种方法提取佩兰挥发油.Method: The volatile oils were obtained with supercritical CO 2, microwave and stream distill...
The ancient people who was successful, not only had exceptional talent but also had unflinching will.古人立大事者, 不惟有超世之才,亦必有望忍不拔之志.British justice of the time was grim and unflinching.英国当时的法律是严酷的.He holds his ground, fearles...