费心fèi∥xīn耗费心神(多用做请托或致谢时客套话{polite words used when asking for help or expressing thanks}){take much trouble; may I trouble you (to do sth.); would you mind (doing sth.)}: 您要是见到他,～把这封信交给他{Would you mind giving him this letter when you see him ?}|这孩子真让人～。{This child is really troublesome.}厜