Diets are most effective when combined with exercise.
节食和锻炼相结合是最有效的。
Ruth hesitated, uncertain of how to combine honesty and diplomacy in her answer.
露丝犹豫了,她不知道怎样回答才能既诚实又婉转。
n. [农机]联合收割机;联合企业
integrated works、
Konzern