1) This law has become a dead letter.
此法已成为一纸空文。
2) this file
此一文件
3) You are supposed to have finished by now.
此刻你应已完成。
4) It is done and attached.
此已完成并附呈。
5) For that a remedy came,
为此他找到办法。
补充资料：为此
1.因此;因为这个。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条