su1314
幼苗
共回答了18个问题采纳率:94.4% 举报
1楼的可以.有些小错,改成:
'The rubber ring is installed inside the valve ball,therefore it is not possible to use different rubber rings for the same valve.'
'We will try our best to modify the molds as soon as possible'.
如果是指模子,那么 'mold' 可以,如果是指模型,那就用 'model'.
1年前
6